QDir¶
The QDir
class provides access to directory structures and their contents. More…
Synopsis¶
Functions¶
def
__eq__
(dir)def
__ne__
(dir)def
__reduce__
()def
absoluteFilePath
(fileName)def
absolutePath
()def
canonicalPath
()def
cd
(dirName)def
cdUp
()def
count
()def
dirName
()def
entryInfoList
([filters=QDir.Filter.NoFilter[, sort=QDir.SortFlag.NoSort]])def
entryInfoList
(nameFilters[, filters=QDir.Filter.NoFilter[, sort=QDir.SortFlag.NoSort]])def
entryList
([filters=QDir.Filter.NoFilter[, sort=QDir.SortFlag.NoSort]])def
entryList
(nameFilters[, filters=QDir.Filter.NoFilter[, sort=QDir.SortFlag.NoSort]])def
exists
()def
exists
(name)def
filePath
(fileName)def
filter
()def
isAbsolute
()def
isEmpty
([filters=QDir.Filters(QDir.Filter.AllEntries | QDir.Filter.NoDotAndDotDot)])def
isReadable
()def
isRelative
()def
isRoot
()def
makeAbsolute
()def
mkdir
(dirName)def
mkpath
(dirPath)def
nameFilters
()def
operator[]
(arg__1)def
path
()def
refresh
()def
relativeFilePath
(fileName)def
remove
(fileName)def
removeRecursively
()def
rename
(oldName, newName)def
rmdir
(dirName)def
rmpath
(dirPath)def
setFilter
(filter)def
setNameFilters
(nameFilters)def
setPath
(path)def
setSorting
(sort)def
sorting
()def
swap
(other)
Static functions¶
def
addSearchPath
(prefix, path)def
cleanPath
(path)def
current
()def
currentPath
()def
drives
()def
fromNativeSeparators
(pathName)def
home
()def
homePath
()def
isAbsolutePath
(path)def
isRelativePath
(path)def
listSeparator
()def
match
(filter, fileName)def
match
(filters, fileName)def
nameFiltersFromString
(nameFilter)def
root
()def
rootPath
()def
searchPaths
(prefix)def
separator
()def
setCurrent
(path)def
setSearchPaths
(prefix, searchPaths)def
temp
()def
tempPath
()def
toNativeSeparators
(pathName)
Detailed Description¶
A QDir
is used to manipulate path names, access information regarding paths and files, and manipulate the underlying file system. It can also be used to access Qt’s resource system .
Qt uses “/” as a universal directory separator in the same way that “/” is used as a path separator in URLs. If you always use “/” as a directory separator, Qt will translate your paths to conform to the underlying operating system.
A QDir
can point to a file using either a relative or an absolute path. Absolute paths begin with the directory separator (optionally preceded by a drive specification under Windows). Relative file names begin with a directory name or a file name and specify a path relative to the current directory.
Examples of absolute paths:
QDir("/home/user/Documents") QDir("C:/Documents and Settings")
On Windows, the second example above will be translated to C:\Documents and Settings
when used to access files.
Examples of relative paths:
QDir("images/landscape.png")
You can use the isRelative()
or isAbsolute()
functions to check if a QDir
is using a relative or an absolute file path. Call makeAbsolute()
to convert a relative QDir
to an absolute one.
Note
Paths starting with a colon (:) are always considered absolute, as they denote a QResource
.
Files and Directory Contents¶
Directories contain a number of entries, representing files, directories, and symbolic links. The number of entries in a directory is returned by count()
. A string list of the names of all the entries in a directory can be obtained with entryList()
. If you need information about each entry, use entryInfoList()
to obtain a list of QFileInfo
objects.
Paths to files and directories within a directory can be constructed using filePath()
and absoluteFilePath()
. The filePath()
function returns a path to the specified file or directory relative to the path of the QDir
object; absoluteFilePath()
returns an absolute path to the specified file or directory. Neither of these functions checks for the existence of files or directory; they only construct paths.
directory = QDir("Documents/Letters") path = directory.filePath("contents.txt") absolutePath = directory.absoluteFilePath("contents.txt")
Files can be removed by using the remove()
function. Directories cannot be removed in the same way as files; use rmdir()
to remove them instead.
It is possible to reduce the number of entries returned by entryList()
and entryInfoList()
by applying filters to a QDir
object. You can apply a name filter to specify a pattern with wildcards that file names need to match, an attribute filter that selects properties of entries and can distinguish between files and directories, and a sort order.
Name filters are lists of strings that are passed to setNameFilters()
. Attribute filters consist of a bitwise OR combination of Filters, and these are specified when calling setFilter()
. The sort order is specified using setSorting()
with a bitwise OR combination of SortFlags
.
You can test to see if a filename matches a filter using the match()
function.
Filter and sort order flags may also be specified when calling entryList()
and entryInfoList()
in order to override previously defined behavior.
The Current Directory and Other Special Paths¶
Access to some common directories is provided with a number of static functions that return QDir
objects. There are also corresponding functions for these that return strings:
QString
Return Value
The application’s working directory
The user’s home directory
The root directory
The system’s temporary directory
The setCurrent()
static function can also be used to set the application’s working directory.
If you want to find the directory containing the application’s executable, see applicationDirPath()
.
The drives()
static function provides a list of root directories for each device that contains a filing system. On Unix systems this returns a list containing a single root directory “/”; on Windows the list will usually contain C:/
, and possibly other drive letters such as D:/
, depending on the configuration of the user’s system.
Path Manipulation and Strings¶
Paths containing “.” elements that reference the current directory at that point in the path, “..” elements that reference the parent directory, and symbolic links can be reduced to a canonical form using the canonicalPath()
function.
Paths can also be simplified by using cleanPath()
to remove redundant “/” and “..” elements.
It is sometimes necessary to be able to show a path in the native representation for the user’s platform. The static toNativeSeparators()
function returns a copy of the specified path in which each directory separator is replaced by the appropriate separator for the underlying operating system.
Examples¶
Check if a directory exists:
dir = QDir("example") if not dir.exists(): qWarning("Cannot find the example directory")
(We could also use the static convenience function exists()
.)
Traversing directories and reading a file:
dir = QDir.root() # "/"() if not dir.cd("tmp"): # "/tmp" qWarning("Cannot find the \"/tmp\" directory") else: file = QFile(dir.filePath("ex1.txt")) if (not file.open(QIODevice.ReadWrite)) qWarning("Cannot create the file %s", file.name())
A program that lists all the files in the current directory (excluding symbolic links), sorted by size, smallest first:
from PySide6.QtCore import QDir if __name__ == "__main__": app = QCoreApplication(argc, argv) dir = QDir() dir.setFilter(QDir.Files | QDir.Hidden | QDir.NoSymLinks) dir.setSorting(QDir.Size | QDir.Reversed) list = dir.entryInfoList() print(" Bytes Filename") for i in range(0, list.size()): fileInfo = list.at(i) print(qPrintable(QString("%1 %2").arg(fileInfo.size(), 10)) .arg(fileInfo.fileName())) std::cout << std::endl return 0See also
QFileInfo
QFile
QFileDialog
applicationDirPath()
Find Files Example
- class PySide6.QtCore.QDir(arg__1)¶
PySide6.QtCore.QDir([path=””])
PySide6.QtCore.QDir(path, nameFilter[, sort=QDir.SortFlags(QDir.SortFlag.Name | QDir.SortFlag.IgnoreCase)[, filter=QDir.Filter.AllEntries]])
- Parameters
path – str
nameFilter – str
filter –
Filters
sort –
SortFlags
arg__1 –
PySide6.QtCore.QDir
Constructs a QDir
object that is a copy of the QDir
object for directory dir
.
See also
operator=()
Constructs a QDir
pointing to the given directory path
. If path is empty the program’s working directory, (“.”), is used.
See also
Constructs a QDir
with path path
, that filters its entries by name using nameFilter
and by attributes using filters
. It also sorts the names using sort
.
The default nameFilter
is an empty string, which excludes nothing; the default filters
is AllEntries
, which also excludes nothing. The default sort
is Name
| IgnoreCase
, i.e. sort by name case-insensitively.
If path
is an empty string, QDir
uses “.” (the current directory). If nameFilter
is an empty string, QDir
uses the name filter “*” (all files).
- PySide6.QtCore.QDir.Filter¶
This enum describes the filtering options available to QDir
; e.g. for entryList()
and entryInfoList()
. The filter value is specified by combining values from the following list using the bitwise OR operator:
Constant
Description
QDir.Dirs
List directories that match the filters.
QDir.AllDirs
List all directories; i.e. don’t apply the filters to directory names.
QDir.Files
List files.
QDir.Drives
List disk drives (ignored under Unix).
QDir.NoSymLinks
Do not list symbolic links (ignored by operating systems that don’t support symbolic links).
QDir.NoDotAndDotDot
Do not list the special entries “.” and “..”.
QDir.NoDot
Do not list the special entry “.”.
QDir.NoDotDot
Do not list the special entry “..”.
QDir.AllEntries
List directories, files, drives and symlinks (this does not list broken symlinks unless you specify System).
QDir.Readable
List files for which the application has read access. The Readable value needs to be combined with Dirs or Files.
QDir.Writable
List files for which the application has write access. The Writable value needs to be combined with Dirs or Files.
QDir.Executable
List files for which the application has execute access. The Executable value needs to be combined with Dirs or Files.
QDir.Modified
Only list files that have been modified (ignored on Unix).
QDir.Hidden
List hidden files (on Unix, files starting with a “.”).
QDir.System
List system files (on Unix, FIFOs, sockets and device files are included; on Windows,
.lnk
files are included)QDir.CaseSensitive
The filter should be case sensitive.
Functions that use Filter enum values to filter lists of files and directories will include symbolic links to files and directories unless you set the value.
A default constructed QDir
will not filter out files based on their permissions, so entryList()
and entryInfoList()
will return all files that are readable, writable, executable, or any combination of the three. This makes the default easy to write, and at the same time useful.
For example, setting the Readable
, Writable
, and Files
flags allows all files to be listed for which the application has read access, write access or both. If the Dirs
and Drives
flags are also included in this combination then all drives, directories, all files that the application can read, write, or execute, and symlinks to such files/directories can be listed.
To retrieve the permissions for a directory, use the entryInfoList()
function to get the associated QFileInfo
objects and then use the permissions()
to obtain the permissions and ownership for each file.
- PySide6.QtCore.QDir.SortFlag¶
This enum describes the sort options available to QDir
, e.g. for entryList()
and entryInfoList()
. The sort value is specified by OR-ing together values from the following list:
Constant
Description
QDir.Name
Sort by name.
QDir.Time
Sort by time (modification time).
QDir.Size
Sort by file size.
QDir.Type
Sort by file type (extension).
QDir.Unsorted
Do not sort.
QDir.NoSort
Not sorted by default.
QDir.DirsFirst
Put the directories first, then the files.
QDir.DirsLast
Put the files first, then the directories.
QDir.Reversed
Reverse the sort order.
QDir.IgnoreCase
Sort case-insensitively.
QDir.LocaleAware
Sort items appropriately using the current locale settings.
You can only specify one of the first four.
If you specify both and Reversed, directories are still put first, but in reverse order; the files will be listed after the directories, again in reverse order.
- PySide6.QtCore.QDir.__reduce__()¶
- Return type
object
- PySide6.QtCore.QDir.absoluteFilePath(fileName)¶
- Parameters
fileName – str
- Return type
str
Returns the absolute path name of a file in the directory. Does not check if the file actually exists in the directory; but see exists()
. Redundant multiple separators or “.” and “..” directories in fileName
are not removed (see cleanPath()
).
See also
- PySide6.QtCore.QDir.absolutePath()¶
- Return type
str
Returns the absolute path (a path that starts with “/” or with a drive specification), which may contain symbolic links, but never contains redundant “.”, “..” or multiple separators.
- static PySide6.QtCore.QDir.addSearchPath(prefix, path)¶
- Parameters
prefix – str
path – str
Adds path
to the search path for prefix
.
See also
- PySide6.QtCore.QDir.canonicalPath()¶
- Return type
str
Returns the canonical path, i.e. a path without symbolic links or redundant “.” or “..” elements.
On systems that do not have symbolic links this function will always return the same string that absolutePath()
returns. If the canonical path does not exist (normally due to dangling symbolic links) returns an empty string.
Example:
bin = "/local/bin" # where /local/bin is a symlink to /usr/bin binDir = QDir(bin) canonicalBin = binDir.canonicalPath() # canonicalBin now equals "/usr/bin" ls = "/local/bin/ls" # where ls is the executable "ls" lsDir = QDir(ls) canonicalLs = lsDir.canonicalPath() # canonicalLS now equals "/usr/bin/ls".
- PySide6.QtCore.QDir.cd(dirName)¶
- Parameters
dirName – str
- Return type
bool
Changes the QDir
‘s directory to dirName
.
Returns true
if the new directory exists; otherwise returns false
. Note that the logical operation is not performed if the new directory does not exist.
Calling cd(“..”) is equivalent to calling cdUp()
.
See also
- PySide6.QtCore.QDir.cdUp()¶
- Return type
bool
Changes directory by moving one directory up from the QDir
‘s current directory.
Returns true
if the new directory exists; otherwise returns false
. Note that the logical operation is not performed if the new directory does not exist.
See also
- static PySide6.QtCore.QDir.cleanPath(path)¶
- Parameters
path – str
- Return type
str
Returns path
with directory separators normalized (that is, platform-native separators converted to “/”) and redundant ones removed, and “.”s and “..”s resolved (as far as possible).
Symbolic links are kept. This function does not return the canonical path, but rather the simplest version of the input. For example, “./local” becomes “local”, “local/../bin” becomes “bin” and “/local/usr/../bin” becomes “/local/bin”.
See also
- PySide6.QtCore.QDir.count()¶
- Return type
uint
Returns the total number of directories and files in the directory.
Equivalent to entryList()
..
See also
operator[]()
entryList()
- static PySide6.QtCore.QDir.current()¶
- Return type
Returns the application’s current directory.
The directory is constructed using the absolute path of the current directory, ensuring that its path()
will be the same as its absolutePath()
.
See also
- static PySide6.QtCore.QDir.currentPath()¶
- Return type
str
Returns the absolute path of the application’s current directory. The current directory is the last directory set with setCurrent()
or, if that was never called, the directory at which this application was started at by the parent process.
- PySide6.QtCore.QDir.dirName()¶
- Return type
str
Returns the name of the directory; this is not the same as the path, e.g. a directory with the name “mail”, might have the path “/var/spool/mail”. If the directory has no name (e.g. it is the root directory) an empty string is returned.
No check is made to ensure that a directory with this name actually exists; but see exists()
.
See also
- static PySide6.QtCore.QDir.drives()¶
- Return type
Returns a list of the root directories on this system.
On Windows this returns a list of QFileInfo
objects containing “C:/”, “D:/”, etc. On other operating systems, it returns a list containing just one root directory (i.e. “/”).
See also
- PySide6.QtCore.QDir.entryInfoList([filters=QDir.Filter.NoFilter[, sort=QDir.SortFlag.NoSort]])¶
- Parameters
filters –
Filters
sort –
SortFlags
- Return type
This is an overloaded function.
Returns a list of QFileInfo
objects for all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters()
and setFilter()
, and sorted according to the flags set with setSorting()
.
The attribute filter and sorting specifications can be overridden using the filters
and sort
arguments.
Returns an empty list if the directory is unreadable, does not exist, or if nothing matches the specification.
- PySide6.QtCore.QDir.entryInfoList(nameFilters[, filters=QDir.Filter.NoFilter[, sort=QDir.SortFlag.NoSort]])
- Parameters
nameFilters – list of strings
filters –
Filters
sort –
SortFlags
- Return type
Returns a list of QFileInfo
objects for all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters()
and setFilter()
, and sorted according to the flags set with setSorting()
.
The name filter, file attribute filter, and sorting specification can be overridden using the nameFilters
, filters
, and sort
arguments.
Returns an empty list if the directory is unreadable, does not exist, or if nothing matches the specification.
- PySide6.QtCore.QDir.entryList(nameFilters[, filters=QDir.Filter.NoFilter[, sort=QDir.SortFlag.NoSort]])¶
- Parameters
nameFilters – list of strings
filters –
Filters
sort –
SortFlags
- Return type
list of strings
Returns a list of the names of all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters()
and setFilter()
, and sorted according to the flags set with setSorting()
.
The name filter, file attribute filter, and sorting specification can be overridden using the nameFilters
, filters
, and sort
arguments.
Returns an empty list if the directory is unreadable, does not exist, or if nothing matches the specification.
- PySide6.QtCore.QDir.entryList([filters=QDir.Filter.NoFilter[, sort=QDir.SortFlag.NoSort]])
- Parameters
filters –
Filters
sort –
SortFlags
- Return type
list of strings
This is an overloaded function.
Returns a list of the names of all the files and directories in the directory, ordered according to the name and attribute filters previously set with setNameFilters()
and setFilter()
, and sorted according to the flags set with setSorting()
.
The attribute filter and sorting specifications can be overridden using the filters
and sort
arguments.
Returns an empty list if the directory is unreadable, does not exist, or if nothing matches the specification.
Note
To list symlinks that point to non existing files, System
must be passed to the filter.
- PySide6.QtCore.QDir.exists()¶
- Return type
bool
This is an overloaded function.
Returns true
if the directory exists; otherwise returns false
. (If a file with the same name is found this function will return false).
The overload of this function that accepts an argument is used to test for the presence of files and directories within a directory.
- PySide6.QtCore.QDir.exists(name)
- Parameters
name – str
- Return type
bool
Returns true
if the file called name
exists; otherwise returns false.
Unless name
contains an absolute file path, the file name is assumed to be relative to the directory itself, so this function is typically used to check for the presence of files within a directory.
- PySide6.QtCore.QDir.filePath(fileName)¶
- Parameters
fileName – str
- Return type
str
Returns the path name of a file in the directory. Does not check if the file actually exists in the directory; but see exists()
. If the QDir
is relative the returned path name will also be relative. Redundant multiple separators or “.” and “..” directories in fileName
are not removed (see cleanPath()
).
- PySide6.QtCore.QDir.filter()¶
- Return type
Filters
Returns the value set by setFilter()
See also
- static PySide6.QtCore.QDir.fromNativeSeparators(pathName)¶
- Parameters
pathName – str
- Return type
str
Returns pathName
using ‘/’ as file separator. On Windows, for instance, (”c:\\winnt\\system32
") returns “c:/winnt/system32”.
The returned string may be the same as the argument on some operating systems, for example on Unix.
See also
- static PySide6.QtCore.QDir.home()¶
- Return type
Returns the user’s home directory.
The directory is constructed using the absolute path of the home directory, ensuring that its path()
will be the same as its absolutePath()
.
See homePath()
for details.
- static PySide6.QtCore.QDir.homePath()¶
- Return type
str
Returns the absolute path of the user’s home directory.
Under Windows this function will return the directory of the current user’s profile. Typically, this is:
C:/Documents and Settings/Username
Use the toNativeSeparators()
function to convert the separators to the ones that are appropriate for the underlying operating system.
If the directory of the current user’s profile does not exist or cannot be retrieved, the following alternatives will be checked (in the given order) until an existing and available path is found:
The path specified by the
USERPROFILE
environment variable.The path formed by concatenating the
HOMEDRIVE
andHOMEPATH
environment variables.The path specified by the
HOME
environment variable.The path returned by the
rootPath()
function (which uses theSystemDrive
environment variable)The
C:/
directory.
Under non-Windows operating systems the HOME
environment variable is used if it exists, otherwise the path returned by the rootPath()
.
See also
- PySide6.QtCore.QDir.isAbsolute()¶
- Return type
bool
Returns true
if the directory’s path is absolute; otherwise returns false
. See isAbsolutePath()
.
Note
Paths starting with a colon (:) are always considered absolute, as they denote a QResource
.
See also
- static PySide6.QtCore.QDir.isAbsolutePath(path)¶
- Parameters
path – str
- Return type
bool
Returns true
if path
is absolute; returns false
if it is relative.
Note
Paths starting with a colon (:) are always considered absolute, as they denote a QResource
.
- PySide6.QtCore.QDir.isEmpty([filters=QDir.Filters(QDir.Filter.AllEntries | QDir.Filter.NoDotAndDotDot)])¶
- Parameters
filters –
Filters
- Return type
bool
Returns whether the directory is empty.
Equivalent to count() == 0
with filters QDir::AllEntries | QDir::NoDotAndDotDot
, but faster as it just checks whether the directory contains at least one entry.
Note
Unless you set the filters
flags to include QDir::NoDotAndDotDot
(as the default value does), no directory is empty.
See also
- PySide6.QtCore.QDir.isReadable()¶
- Return type
bool
Returns true
if the directory is readable and we can open files by name; otherwise returns false
.
Warning
A false value from this function is not a guarantee that files in the directory are not accessible.
See also
- PySide6.QtCore.QDir.isRelative()¶
- Return type
bool
Returns true
if the directory path is relative; otherwise returns false. (Under Unix a path is relative if it does not start with a “/”).
Note
Paths starting with a colon (:) are always considered absolute, as they denote a QResource
.
- static PySide6.QtCore.QDir.isRelativePath(path)¶
- Parameters
path – str
- Return type
bool
Returns true
if path
is relative; returns false
if it is absolute.
Note
Paths starting with a colon (:) are always considered absolute, as they denote a QResource
.
See also
- PySide6.QtCore.QDir.isRoot()¶
- Return type
bool
Returns true
if the directory is the root directory; otherwise returns false
.
Note
If the directory is a symbolic link to the root directory this function returns false
. If you want to test for this use canonicalPath()
, e.g.
dir = QDir("/tmp/root_link")
dir = dir.canonicalPath()
if dir.isRoot():
qWarning("It is a root link")
See also
- static PySide6.QtCore.QDir.listSeparator()¶
- Return type
QChar
Returns the native path list separator: ‘:’ under Unix and ‘;’ under Windows.
See also
- PySide6.QtCore.QDir.makeAbsolute()¶
- Return type
bool
Converts the directory path to an absolute path. If it is already absolute nothing happens. Returns true
if the conversion succeeded; otherwise returns false
.
- static PySide6.QtCore.QDir.match(filters, fileName)¶
- Parameters
filters – list of strings
fileName – str
- Return type
bool
This is an overloaded function.
Returns true
if the fileName
matches any of the wildcard (glob) patterns in the list of filters
; otherwise returns false
. The matching is case insensitive.
See also
- static PySide6.QtCore.QDir.match(filter, fileName)
- Parameters
filter – str
fileName – str
- Return type
bool
Returns true
if the fileName
matches the wildcard (glob) pattern filter
; otherwise returns false
. The filter
may contain multiple patterns separated by spaces or semicolons. The matching is case insensitive.
See also
- PySide6.QtCore.QDir.mkdir(dirName)¶
- Parameters
dirName – str
- Return type
bool
Creates a sub-directory called dirName
.
Returns true
on success; otherwise returns false
.
If the directory already exists when this function is called, it will return false.
See also
- PySide6.QtCore.QDir.mkpath(dirPath)¶
- Parameters
dirPath – str
- Return type
bool
Creates the directory path dirPath
.
The function will create all parent directories necessary to create the directory.
Returns true
if successful; otherwise returns false
.
If the path already exists when this function is called, it will return true.
See also
- PySide6.QtCore.QDir.nameFilters()¶
- Return type
list of strings
Returns the string list set by setNameFilters()
See also
- static PySide6.QtCore.QDir.nameFiltersFromString(nameFilter)¶
- Parameters
nameFilter – str
- Return type
list of strings
- PySide6.QtCore.QDir.__ne__(dir)¶
- Parameters
dir –
PySide6.QtCore.QDir
- Return type
bool
Returns true
if directory dir
and this directory have different paths or different sort or filter settings; otherwise returns false.
Example:
# The current directory is "/usr/local" d1 = QDir("/usr/local/bin") d1.setFilter(QDir.Executable) d2 = QDir("bin") if d1 != d2: qDebug("They differ")
- PySide6.QtCore.QDir.__eq__(dir)¶
- Parameters
dir –
PySide6.QtCore.QDir
- Return type
bool
Returns true
if directory dir
and this directory have the same path and their sort and filter settings are the same; otherwise returns false
.
Example:
# The current directory is "/usr/local" d1 = QDir("/usr/local/bin") d2 = QDir("bin") if d1 == d2: qDebug("They're the same")
- PySide6.QtCore.QDir.operator[](arg__1)
- Parameters
arg__1 – int
- Return type
str
Returns the file name at position pos
in the list of file names. Equivalent to entryList()
.at(index). pos
must be a valid index position in the list (i.e., 0 <= pos < count()
).
See also
- PySide6.QtCore.QDir.path()¶
- Return type
str
Returns the path. This may contain symbolic links, but never contains redundant “.”, “..” or multiple separators.
The returned path can be either absolute or relative (see setPath()
).
- PySide6.QtCore.QDir.refresh()¶
Refreshes the directory information.
- PySide6.QtCore.QDir.relativeFilePath(fileName)¶
- Parameters
fileName – str
- Return type
str
Returns the path to fileName
relative to the directory.
dir = QDir("/home/bob") s = QString() s = dir.relativeFilePath("images/file.jpg") # s is "images/file.jpg" s = dir.relativeFilePath("/home/mary/file.txt") # s is "../mary/file.txt"See also
- PySide6.QtCore.QDir.remove(fileName)¶
- Parameters
fileName – str
- Return type
bool
Removes the file, fileName
.
Returns true
if the file is removed successfully; otherwise returns false
.
- PySide6.QtCore.QDir.removeRecursively()¶
- Return type
bool
Removes the directory, including all its contents.
Returns true
if successful, otherwise false.
If a file or directory cannot be removed, keeps going and attempts to delete as many files and sub-directories as possible, then returns false
.
If the directory was already removed, the method returns true
(expected result already reached).
Note
This function is meant for removing a small application-internal directory (such as a temporary directory), but not user-visible directories. For user-visible operations, it is rather recommended to report errors more precisely to the user, to offer solutions in case of errors, to show progress during the deletion since it could take several minutes, etc.
- PySide6.QtCore.QDir.rename(oldName, newName)¶
- Parameters
oldName – str
newName – str
- Return type
bool
Renames a file or directory from oldName
to newName
, and returns true if successful; otherwise returns false
.
On most file systems, fails only if oldName
does not exist, or if a file with the new name already exists. However, there are also other reasons why can fail. For example, on at least one file system fails if newName
points to an open file.
If oldName
is a file (not a directory) that can’t be renamed right away, Qt will try to copy oldName
to newName
and remove oldName
.
See also
- PySide6.QtCore.QDir.rmdir(dirName)¶
- Parameters
dirName – str
- Return type
bool
Removes the directory specified by dirName
.
The directory must be empty for to succeed.
Returns true
if successful; otherwise returns false
.
See also
- PySide6.QtCore.QDir.rmpath(dirPath)¶
- Parameters
dirPath – str
- Return type
bool
Removes the directory path dirPath
.
The function will remove all parent directories in dirPath
, provided that they are empty. This is the opposite of mkpath(dirPath).
Returns true
if successful; otherwise returns false
.
See also
- static PySide6.QtCore.QDir.root()¶
- Return type
Returns the root directory.
The directory is constructed using the absolute path of the root directory, ensuring that its path()
will be the same as its absolutePath()
.
See rootPath()
for details.
- static PySide6.QtCore.QDir.rootPath()¶
- Return type
str
Returns the absolute path of the root directory.
For Unix operating systems this returns “/”. For Windows file systems this normally returns “c:/”.
See also
- static PySide6.QtCore.QDir.searchPaths(prefix)¶
- Parameters
prefix – str
- Return type
list of strings
Returns the search paths for prefix
.
See also
- static PySide6.QtCore.QDir.separator()¶
- Return type
QChar
Returns the native directory separator: “/” under Unix and “\” under Windows.
You do not need to use this function to build file paths. If you always use “/”, Qt will translate your paths to conform to the underlying operating system. If you want to display paths to the user using their operating system’s separator use toNativeSeparators()
.
See also
- static PySide6.QtCore.QDir.setCurrent(path)¶
- Parameters
path – str
- Return type
bool
Sets the application’s current working directory to path
. Returns true
if the directory was successfully changed; otherwise returns false
.
absolute = "/local/bin" relative = "local/bin" absFile = QFileInfo(absolute) relFile = QFileInfo(relative) QDir.setCurrent(QDir.rootPath()) # absFile and relFile now point to the same file QDir.setCurrent("/tmp") # absFile now points to "/local/bin", # while relFile points to "/tmp/local/bin"See also
- PySide6.QtCore.QDir.setFilter(filter)¶
- Parameters
filter –
Filters
Sets the filter used by entryList()
and entryInfoList()
to filters
. The filter is used to specify the kind of files that should be returned by entryList()
and entryInfoList()
. See Filter
.
See also
- PySide6.QtCore.QDir.setNameFilters(nameFilters)¶
- Parameters
nameFilters – list of strings
Sets the name filters used by entryList()
and entryInfoList()
to the list of filters specified by nameFilters
.
Each name filter is a wildcard (globbing) filter that understands *
and ?
wildcards. See fromWildcard()
.
For example, the following code sets three name filters on a QDir
to ensure that only files with extensions typically used for C++ source files are listed:
filters = QStringList() filters << "*.cpp" << "*.cxx" << "*.cc" dir.setNameFilters(filters)See also
- PySide6.QtCore.QDir.setPath(path)¶
- Parameters
path – str
Sets the path of the directory to path
. The path is cleaned of redundant “.”, “..” and of multiple separators. No check is made to see whether a directory with this path actually exists; but you can check for yourself using exists()
.
The path can be either absolute or relative. Absolute paths begin with the directory separator “/” (optionally preceded by a drive specification under Windows). Relative file names begin with a directory name or a file name and specify a path relative to the current directory. An example of an absolute path is the string “/tmp/quartz”, a relative path might look like “src/fatlib”.
- static PySide6.QtCore.QDir.setSearchPaths(prefix, searchPaths)¶
- Parameters
prefix – str
searchPaths – list of strings
Sets or replaces Qt’s search paths for file names with the prefix prefix
to searchPaths
.
To specify a prefix for a file name, prepend the prefix followed by a single colon (e.g., “images:undo.png”, “xmldocs:books.xml”). prefix
can only contain letters or numbers (e.g., it cannot contain a colon, nor a slash).
Qt uses this search path to locate files with a known prefix. The search path entries are tested in order, starting with the first entry.
QDir.setSearchPaths("icons", QStringList(QDir.homePath() + "/images")) QDir.setSearchPaths("docs", QStringList(":/embeddedDocuments")) ... pixmap = QPixmap("icons:undo.png") # will look for undo.png in QDir.homePath() file = QFile("docs:design.odf")
File name prefix must be at least 2 characters long to avoid conflicts with Windows drive letters.
Search paths may contain paths to The Qt Resource System .
See also
- PySide6.QtCore.QDir.setSorting(sort)¶
- Parameters
sort –
SortFlags
Sets the sort order used by entryList()
and entryInfoList()
.
The sort
is specified by OR-ing values from the enum SortFlag
.
See also
sorting()
SortFlag
- PySide6.QtCore.QDir.sorting()¶
- Return type
SortFlags
Returns the value set by setSorting()
See also
setSorting()
SortFlag
- PySide6.QtCore.QDir.swap(other)¶
- Parameters
other –
PySide6.QtCore.QDir
Swaps this QDir
instance with other
. This function is very fast and never fails.
- static PySide6.QtCore.QDir.temp()¶
- Return type
Returns the system’s temporary directory.
The directory is constructed using the absolute canonical path of the temporary directory, ensuring that its path()
will be the same as its absolutePath()
.
See tempPath()
for details.
- static PySide6.QtCore.QDir.tempPath()¶
- Return type
str
Returns the absolute canonical path of the system’s temporary directory.
On Unix/Linux systems this is the path in the TMPDIR
environment variable or /tmp
if TMPDIR
is not defined. On Windows this is usually the path in the TEMP
or TMP
environment variable. The path returned by this method doesn’t end with a directory separator unless it is the root directory (of a drive).
See also
- static PySide6.QtCore.QDir.toNativeSeparators(pathName)¶
- Parameters
pathName – str
- Return type
str
Returns pathName
with the ‘/’ separators converted to separators that are appropriate for the underlying operating system.
On Windows, (“c:/winnt/system32”) returns “c:\winnt\system32”.
The returned string may be the same as the argument on some operating systems, for example on Unix.
See also
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