doc_content stringlengths 1 386k | doc_id stringlengths 5 188 |
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os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGETLB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_16GB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_16MB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_1GB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_1MB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_256MB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_2GB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_2MB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_32MB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_512KB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_512MB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_64KB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_8MB |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_MASK |
os.MFD_CLOEXEC
os.MFD_ALLOW_SEALING
os.MFD_HUGETLB
os.MFD_HUGE_SHIFT
os.MFD_HUGE_MASK
os.MFD_HUGE_64KB
os.MFD_HUGE_512KB
os.MFD_HUGE_1MB
os.MFD_HUGE_2MB
os.MFD_HUGE_8MB
os.MFD_HUGE_16MB
os.MFD_HUGE_32MB
os.MFD_HUGE_256MB
os.MFD_HUGE_512MB
os.MFD_HUGE_1GB
os.MFD_HUGE_2GB
os.MFD_HUGE_16GB ... | python.library.os#os.MFD_HUGE_SHIFT |
os.minor(device)
Extract the device minor number from a raw device number (usually the st_dev or st_rdev field from stat). | python.library.os#os.minor |
os.mkdir(path, mode=0o777, *, dir_fd=None)
Create a directory named path with numeric mode mode. If the directory already exists, FileExistsError is raised. On some systems, mode is ignored. Where it is used, the current umask value is first masked out. If bits other than the last 9 (i.e. the last 3 digits of the oct... | python.library.os#os.mkdir |
os.mkfifo(path, mode=0o666, *, dir_fd=None)
Create a FIFO (a named pipe) named path with numeric mode mode. The current umask value is first masked out from the mode. This function can also support paths relative to directory descriptors. FIFOs are pipes that can be accessed like regular files. FIFOs exist until they... | python.library.os#os.mkfifo |
os.mknod(path, mode=0o600, device=0, *, dir_fd=None)
Create a filesystem node (file, device special file or named pipe) named path. mode specifies both the permissions to use and the type of node to be created, being combined (bitwise OR) with one of stat.S_IFREG, stat.S_IFCHR, stat.S_IFBLK, and stat.S_IFIFO (those c... | python.library.os#os.mknod |
os.name
The name of the operating system dependent module imported. The following names have currently been registered: 'posix', 'nt', 'java'. See also sys.platform has a finer granularity. os.uname() gives system-dependent version information. The platform module provides detailed checks for the system’s identity. | python.library.os#os.name |
os.nice(increment)
Add increment to the process’s “niceness”. Return the new niceness. Availability: Unix. | python.library.os#os.nice |
os.open(path, flags, mode=0o777, *, dir_fd=None)
Open the file path and set various flags according to flags and possibly its mode according to mode. When computing mode, the current umask value is first masked out. Return the file descriptor for the newly opened file. The new file descriptor is non-inheritable. For ... | python.library.os#os.open |
os.openpty()
Open a new pseudo-terminal pair. Return a pair of file descriptors (master, slave) for the pty and the tty, respectively. The new file descriptors are non-inheritable. For a (slightly) more portable approach, use the pty module. Availability: some flavors of Unix. Changed in version 3.4: The new file de... | python.library.os#os.openpty |
os.O_RDONLY
os.O_WRONLY
os.O_RDWR
os.O_APPEND
os.O_CREAT
os.O_EXCL
os.O_TRUNC
The above constants are available on Unix and Windows. | python.library.os#os.O_APPEND |
os.O_ASYNC
os.O_DIRECT
os.O_DIRECTORY
os.O_NOFOLLOW
os.O_NOATIME
os.O_PATH
os.O_TMPFILE
os.O_SHLOCK
os.O_EXLOCK
The above constants are extensions and not present if they are not defined by the C library. Changed in version 3.4: Add O_PATH on systems that support it. Add O_TMPFILE, only available on ... | python.library.os#os.O_ASYNC |
os.O_BINARY
os.O_NOINHERIT
os.O_SHORT_LIVED
os.O_TEMPORARY
os.O_RANDOM
os.O_SEQUENTIAL
os.O_TEXT
The above constants are only available on Windows. | python.library.os#os.O_BINARY |
os.O_DSYNC
os.O_RSYNC
os.O_SYNC
os.O_NDELAY
os.O_NONBLOCK
os.O_NOCTTY
os.O_CLOEXEC
The above constants are only available on Unix. Changed in version 3.3: Add O_CLOEXEC constant. | python.library.os#os.O_CLOEXEC |
os.O_RDONLY
os.O_WRONLY
os.O_RDWR
os.O_APPEND
os.O_CREAT
os.O_EXCL
os.O_TRUNC
The above constants are available on Unix and Windows. | python.library.os#os.O_CREAT |
os.O_ASYNC
os.O_DIRECT
os.O_DIRECTORY
os.O_NOFOLLOW
os.O_NOATIME
os.O_PATH
os.O_TMPFILE
os.O_SHLOCK
os.O_EXLOCK
The above constants are extensions and not present if they are not defined by the C library. Changed in version 3.4: Add O_PATH on systems that support it. Add O_TMPFILE, only available on ... | python.library.os#os.O_DIRECT |
os.O_ASYNC
os.O_DIRECT
os.O_DIRECTORY
os.O_NOFOLLOW
os.O_NOATIME
os.O_PATH
os.O_TMPFILE
os.O_SHLOCK
os.O_EXLOCK
The above constants are extensions and not present if they are not defined by the C library. Changed in version 3.4: Add O_PATH on systems that support it. Add O_TMPFILE, only available on ... | python.library.os#os.O_DIRECTORY |
os.O_DSYNC
os.O_RSYNC
os.O_SYNC
os.O_NDELAY
os.O_NONBLOCK
os.O_NOCTTY
os.O_CLOEXEC
The above constants are only available on Unix. Changed in version 3.3: Add O_CLOEXEC constant. | python.library.os#os.O_DSYNC |
os.O_RDONLY
os.O_WRONLY
os.O_RDWR
os.O_APPEND
os.O_CREAT
os.O_EXCL
os.O_TRUNC
The above constants are available on Unix and Windows. | python.library.os#os.O_EXCL |
os.O_ASYNC
os.O_DIRECT
os.O_DIRECTORY
os.O_NOFOLLOW
os.O_NOATIME
os.O_PATH
os.O_TMPFILE
os.O_SHLOCK
os.O_EXLOCK
The above constants are extensions and not present if they are not defined by the C library. Changed in version 3.4: Add O_PATH on systems that support it. Add O_TMPFILE, only available on ... | python.library.os#os.O_EXLOCK |
os.O_DSYNC
os.O_RSYNC
os.O_SYNC
os.O_NDELAY
os.O_NONBLOCK
os.O_NOCTTY
os.O_CLOEXEC
The above constants are only available on Unix. Changed in version 3.3: Add O_CLOEXEC constant. | python.library.os#os.O_NDELAY |
os.O_ASYNC
os.O_DIRECT
os.O_DIRECTORY
os.O_NOFOLLOW
os.O_NOATIME
os.O_PATH
os.O_TMPFILE
os.O_SHLOCK
os.O_EXLOCK
The above constants are extensions and not present if they are not defined by the C library. Changed in version 3.4: Add O_PATH on systems that support it. Add O_TMPFILE, only available on ... | python.library.os#os.O_NOATIME |
os.O_DSYNC
os.O_RSYNC
os.O_SYNC
os.O_NDELAY
os.O_NONBLOCK
os.O_NOCTTY
os.O_CLOEXEC
The above constants are only available on Unix. Changed in version 3.3: Add O_CLOEXEC constant. | python.library.os#os.O_NOCTTY |
os.O_ASYNC
os.O_DIRECT
os.O_DIRECTORY
os.O_NOFOLLOW
os.O_NOATIME
os.O_PATH
os.O_TMPFILE
os.O_SHLOCK
os.O_EXLOCK
The above constants are extensions and not present if they are not defined by the C library. Changed in version 3.4: Add O_PATH on systems that support it. Add O_TMPFILE, only available on ... | python.library.os#os.O_NOFOLLOW |
os.O_BINARY
os.O_NOINHERIT
os.O_SHORT_LIVED
os.O_TEMPORARY
os.O_RANDOM
os.O_SEQUENTIAL
os.O_TEXT
The above constants are only available on Windows. | python.library.os#os.O_NOINHERIT |
os.O_DSYNC
os.O_RSYNC
os.O_SYNC
os.O_NDELAY
os.O_NONBLOCK
os.O_NOCTTY
os.O_CLOEXEC
The above constants are only available on Unix. Changed in version 3.3: Add O_CLOEXEC constant. | python.library.os#os.O_NONBLOCK |
os.O_ASYNC
os.O_DIRECT
os.O_DIRECTORY
os.O_NOFOLLOW
os.O_NOATIME
os.O_PATH
os.O_TMPFILE
os.O_SHLOCK
os.O_EXLOCK
The above constants are extensions and not present if they are not defined by the C library. Changed in version 3.4: Add O_PATH on systems that support it. Add O_TMPFILE, only available on ... | python.library.os#os.O_PATH |
os.O_BINARY
os.O_NOINHERIT
os.O_SHORT_LIVED
os.O_TEMPORARY
os.O_RANDOM
os.O_SEQUENTIAL
os.O_TEXT
The above constants are only available on Windows. | python.library.os#os.O_RANDOM |
os.O_RDONLY
os.O_WRONLY
os.O_RDWR
os.O_APPEND
os.O_CREAT
os.O_EXCL
os.O_TRUNC
The above constants are available on Unix and Windows. | python.library.os#os.O_RDONLY |
os.O_RDONLY
os.O_WRONLY
os.O_RDWR
os.O_APPEND
os.O_CREAT
os.O_EXCL
os.O_TRUNC
The above constants are available on Unix and Windows. | python.library.os#os.O_RDWR |
os.O_DSYNC
os.O_RSYNC
os.O_SYNC
os.O_NDELAY
os.O_NONBLOCK
os.O_NOCTTY
os.O_CLOEXEC
The above constants are only available on Unix. Changed in version 3.3: Add O_CLOEXEC constant. | python.library.os#os.O_RSYNC |
os.O_BINARY
os.O_NOINHERIT
os.O_SHORT_LIVED
os.O_TEMPORARY
os.O_RANDOM
os.O_SEQUENTIAL
os.O_TEXT
The above constants are only available on Windows. | python.library.os#os.O_SEQUENTIAL |
os.O_ASYNC
os.O_DIRECT
os.O_DIRECTORY
os.O_NOFOLLOW
os.O_NOATIME
os.O_PATH
os.O_TMPFILE
os.O_SHLOCK
os.O_EXLOCK
The above constants are extensions and not present if they are not defined by the C library. Changed in version 3.4: Add O_PATH on systems that support it. Add O_TMPFILE, only available on ... | python.library.os#os.O_SHLOCK |
os.O_BINARY
os.O_NOINHERIT
os.O_SHORT_LIVED
os.O_TEMPORARY
os.O_RANDOM
os.O_SEQUENTIAL
os.O_TEXT
The above constants are only available on Windows. | python.library.os#os.O_SHORT_LIVED |
os.O_DSYNC
os.O_RSYNC
os.O_SYNC
os.O_NDELAY
os.O_NONBLOCK
os.O_NOCTTY
os.O_CLOEXEC
The above constants are only available on Unix. Changed in version 3.3: Add O_CLOEXEC constant. | python.library.os#os.O_SYNC |
os.O_BINARY
os.O_NOINHERIT
os.O_SHORT_LIVED
os.O_TEMPORARY
os.O_RANDOM
os.O_SEQUENTIAL
os.O_TEXT
The above constants are only available on Windows. | python.library.os#os.O_TEMPORARY |
os.O_BINARY
os.O_NOINHERIT
os.O_SHORT_LIVED
os.O_TEMPORARY
os.O_RANDOM
os.O_SEQUENTIAL
os.O_TEXT
The above constants are only available on Windows. | python.library.os#os.O_TEXT |
os.O_ASYNC
os.O_DIRECT
os.O_DIRECTORY
os.O_NOFOLLOW
os.O_NOATIME
os.O_PATH
os.O_TMPFILE
os.O_SHLOCK
os.O_EXLOCK
The above constants are extensions and not present if they are not defined by the C library. Changed in version 3.4: Add O_PATH on systems that support it. Add O_TMPFILE, only available on ... | python.library.os#os.O_TMPFILE |
os.O_RDONLY
os.O_WRONLY
os.O_RDWR
os.O_APPEND
os.O_CREAT
os.O_EXCL
os.O_TRUNC
The above constants are available on Unix and Windows. | python.library.os#os.O_TRUNC |
os.O_RDONLY
os.O_WRONLY
os.O_RDWR
os.O_APPEND
os.O_CREAT
os.O_EXCL
os.O_TRUNC
The above constants are available on Unix and Windows. | python.library.os#os.O_WRONLY |
os.pardir
The constant string used by the operating system to refer to the parent directory. This is '..' for Windows and POSIX. Also available via os.path. | python.library.os#os.pardir |
os.path — Common pathname manipulations Source code: Lib/posixpath.py (for POSIX) and Lib/ntpath.py (for Windows NT). This module implements some useful functions on pathnames. To read or write files see open(), and for accessing the filesystem see the os module. The path parameters can be passed as either strings, or ... | python.library.os.path |
os.path.abspath(path)
Return a normalized absolutized version of the pathname path. On most platforms, this is equivalent to calling the function normpath() as follows: normpath(join(os.getcwd(), path)). Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.abspath |
os.path.basename(path)
Return the base name of pathname path. This is the second element of the pair returned by passing path to the function split(). Note that the result of this function is different from the Unix basename program; where basename for '/foo/bar/' returns 'bar', the basename() function returns an emp... | python.library.os.path#os.path.basename |
os.path.commonpath(paths)
Return the longest common sub-path of each pathname in the sequence paths. Raise ValueError if paths contain both absolute and relative pathnames, the paths are on the different drives or if paths is empty. Unlike commonprefix(), this returns a valid path. Availability: Unix, Windows. New i... | python.library.os.path#os.path.commonpath |
os.path.commonprefix(list)
Return the longest path prefix (taken character-by-character) that is a prefix of all paths in list. If list is empty, return the empty string (''). Note This function may return invalid paths because it works a character at a time. To obtain a valid path, see commonpath(). >>> os.path.com... | python.library.os.path#os.path.commonprefix |
os.path.dirname(path)
Return the directory name of pathname path. This is the first element of the pair returned by passing path to the function split(). Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.dirname |
os.path.exists(path)
Return True if path refers to an existing path or an open file descriptor. Returns False for broken symbolic links. On some platforms, this function may return False if permission is not granted to execute os.stat() on the requested file, even if the path physically exists. Changed in version 3.... | python.library.os.path#os.path.exists |
os.path.expanduser(path)
On Unix and Windows, return the argument with an initial component of ~ or ~user replaced by that user’s home directory. On Unix, an initial ~ is replaced by the environment variable HOME if it is set; otherwise the current user’s home directory is looked up in the password directory through ... | python.library.os.path#os.path.expanduser |
os.path.expandvars(path)
Return the argument with environment variables expanded. Substrings of the form $name or ${name} are replaced by the value of environment variable name. Malformed variable names and references to non-existing variables are left unchanged. On Windows, %name% expansions are supported in additio... | python.library.os.path#os.path.expandvars |
os.path.getatime(path)
Return the time of last access of path. The return value is a floating point number giving the number of seconds since the epoch (see the time module). Raise OSError if the file does not exist or is inaccessible. | python.library.os.path#os.path.getatime |
os.path.getctime(path)
Return the system’s ctime which, on some systems (like Unix) is the time of the last metadata change, and, on others (like Windows), is the creation time for path. The return value is a number giving the number of seconds since the epoch (see the time module). Raise OSError if the file does not... | python.library.os.path#os.path.getctime |
os.path.getmtime(path)
Return the time of last modification of path. The return value is a floating point number giving the number of seconds since the epoch (see the time module). Raise OSError if the file does not exist or is inaccessible. Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.getmtime |
os.path.getsize(path)
Return the size, in bytes, of path. Raise OSError if the file does not exist or is inaccessible. Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.getsize |
os.path.isabs(path)
Return True if path is an absolute pathname. On Unix, that means it begins with a slash, on Windows that it begins with a (back)slash after chopping off a potential drive letter. Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.isabs |
os.path.isdir(path)
Return True if path is an existing directory. This follows symbolic links, so both islink() and isdir() can be true for the same path. Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.isdir |
os.path.isfile(path)
Return True if path is an existing regular file. This follows symbolic links, so both islink() and isfile() can be true for the same path. Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.isfile |
os.path.islink(path)
Return True if path refers to an existing directory entry that is a symbolic link. Always False if symbolic links are not supported by the Python runtime. Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.islink |
os.path.ismount(path)
Return True if pathname path is a mount point: a point in a file system where a different file system has been mounted. On POSIX, the function checks whether path’s parent, path/.., is on a different device than path, or whether path/.. and path point to the same i-node on the same device — this... | python.library.os.path#os.path.ismount |
os.path.join(path, *paths)
Join one or more path components intelligently. The return value is the concatenation of path and any members of *paths with exactly one directory separator following each non-empty part except the last, meaning that the result will only end in a separator if the last part is empty. If a co... | python.library.os.path#os.path.join |
os.path.lexists(path)
Return True if path refers to an existing path. Returns True for broken symbolic links. Equivalent to exists() on platforms lacking os.lstat(). Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.lexists |
os.path.normcase(path)
Normalize the case of a pathname. On Windows, convert all characters in the pathname to lowercase, and also convert forward slashes to backward slashes. On other operating systems, return the path unchanged. Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.normcase |
os.path.normpath(path)
Normalize a pathname by collapsing redundant separators and up-level references so that A//B, A/B/, A/./B and A/foo/../B all become A/B. This string manipulation may change the meaning of a path that contains symbolic links. On Windows, it converts forward slashes to backward slashes. To normal... | python.library.os.path#os.path.normpath |
os.path.realpath(path)
Return the canonical path of the specified filename, eliminating any symbolic links encountered in the path (if they are supported by the operating system). Note When symbolic link cycles occur, the returned path will be one member of the cycle, but no guarantee is made about which member that... | python.library.os.path#os.path.realpath |
os.path.relpath(path, start=os.curdir)
Return a relative filepath to path either from the current directory or from an optional start directory. This is a path computation: the filesystem is not accessed to confirm the existence or nature of path or start. On Windows, ValueError is raised when path and start are on d... | python.library.os.path#os.path.relpath |
os.path.samefile(path1, path2)
Return True if both pathname arguments refer to the same file or directory. This is determined by the device number and i-node number and raises an exception if an os.stat() call on either pathname fails. Availability: Unix, Windows. Changed in version 3.2: Added Windows support. Cha... | python.library.os.path#os.path.samefile |
os.path.sameopenfile(fp1, fp2)
Return True if the file descriptors fp1 and fp2 refer to the same file. Availability: Unix, Windows. Changed in version 3.2: Added Windows support. Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.sameopenfile |
os.path.samestat(stat1, stat2)
Return True if the stat tuples stat1 and stat2 refer to the same file. These structures may have been returned by os.fstat(), os.lstat(), or os.stat(). This function implements the underlying comparison used by samefile() and sameopenfile(). Availability: Unix, Windows. Changed in vers... | python.library.os.path#os.path.samestat |
os.path.split(path)
Split the pathname path into a pair, (head, tail) where tail is the last pathname component and head is everything leading up to that. The tail part will never contain a slash; if path ends in a slash, tail will be empty. If there is no slash in path, head will be empty. If path is empty, both hea... | python.library.os.path#os.path.split |
os.path.splitdrive(path)
Split the pathname path into a pair (drive, tail) where drive is either a mount point or the empty string. On systems which do not use drive specifications, drive will always be the empty string. In all cases, drive
+ tail will be the same as path. On Windows, splits a pathname into drive/UNC... | python.library.os.path#os.path.splitdrive |
os.path.splitext(path)
Split the pathname path into a pair (root, ext) such that root + ext ==
path, and ext is empty or begins with a period and contains at most one period. Leading periods on the basename are ignored; splitext('.cshrc') returns ('.cshrc', ''). Changed in version 3.6: Accepts a path-like object. | python.library.os.path#os.path.splitext |
os.path.supports_unicode_filenames
True if arbitrary Unicode strings can be used as file names (within limitations imposed by the file system). | python.library.os.path#os.path.supports_unicode_filenames |
os.pathconf(path, name)
Return system configuration information relevant to a named file. name specifies the configuration value to retrieve; it may be a string which is the name of a defined system value; these names are specified in a number of standards (POSIX.1, Unix 95, Unix 98, and others). Some platforms defin... | python.library.os#os.pathconf |
os.pathconf_names
Dictionary mapping names accepted by pathconf() and fpathconf() to the integer values defined for those names by the host operating system. This can be used to determine the set of names known to the system. Availability: Unix. | python.library.os#os.pathconf_names |
class os.PathLike
An abstract base class for objects representing a file system path, e.g. pathlib.PurePath. New in version 3.6.
abstractmethod __fspath__()
Return the file system path representation of the object. The method should only return a str or bytes object, with the preference being for str. | python.library.os#os.PathLike |
abstractmethod __fspath__()
Return the file system path representation of the object. The method should only return a str or bytes object, with the preference being for str. | python.library.os#os.PathLike.__fspath__ |
os.pathsep
The character conventionally used by the operating system to separate search path components (as in PATH), such as ':' for POSIX or ';' for Windows. Also available via os.path. | python.library.os#os.pathsep |
os.pidfd_open(pid, flags=0)
Return a file descriptor referring to the process pid. This descriptor can be used to perform process management without races and signals. The flags argument is provided for future extensions; no flag values are currently defined. See the pidfd_open(2) man page for more details. Availabil... | python.library.os#os.pidfd_open |
os.pipe()
Create a pipe. Return a pair of file descriptors (r, w) usable for reading and writing, respectively. The new file descriptor is non-inheritable. Availability: Unix, Windows. Changed in version 3.4: The new file descriptors are now non-inheritable. | python.library.os#os.pipe |
os.pipe2(flags)
Create a pipe with flags set atomically. flags can be constructed by ORing together one or more of these values: O_NONBLOCK, O_CLOEXEC. Return a pair of file descriptors (r, w) usable for reading and writing, respectively. Availability: some flavors of Unix. New in version 3.3. | python.library.os#os.pipe2 |
os.plock(op)
Lock program segments into memory. The value of op (defined in <sys/lock.h>) determines which segments are locked. Availability: Unix. | python.library.os#os.plock |
os.popen(cmd, mode='r', buffering=-1)
Open a pipe to or from command cmd. The return value is an open file object connected to the pipe, which can be read or written depending on whether mode is 'r' (default) or 'w'. The buffering argument has the same meaning as the corresponding argument to the built-in open() func... | python.library.os#os.popen |
os.posix_fadvise(fd, offset, len, advice)
Announces an intention to access data in a specific pattern thus allowing the kernel to make optimizations. The advice applies to the region of the file specified by fd starting at offset and continuing for len bytes. advice is one of POSIX_FADV_NORMAL, POSIX_FADV_SEQUENTIAL,... | python.library.os#os.posix_fadvise |
os.POSIX_FADV_NORMAL
os.POSIX_FADV_SEQUENTIAL
os.POSIX_FADV_RANDOM
os.POSIX_FADV_NOREUSE
os.POSIX_FADV_WILLNEED
os.POSIX_FADV_DONTNEED
Flags that can be used in advice in posix_fadvise() that specify the access pattern that is likely to be used. Availability: Unix. New in version 3.3. | python.library.os#os.POSIX_FADV_DONTNEED |
os.POSIX_FADV_NORMAL
os.POSIX_FADV_SEQUENTIAL
os.POSIX_FADV_RANDOM
os.POSIX_FADV_NOREUSE
os.POSIX_FADV_WILLNEED
os.POSIX_FADV_DONTNEED
Flags that can be used in advice in posix_fadvise() that specify the access pattern that is likely to be used. Availability: Unix. New in version 3.3. | python.library.os#os.POSIX_FADV_NOREUSE |
os.POSIX_FADV_NORMAL
os.POSIX_FADV_SEQUENTIAL
os.POSIX_FADV_RANDOM
os.POSIX_FADV_NOREUSE
os.POSIX_FADV_WILLNEED
os.POSIX_FADV_DONTNEED
Flags that can be used in advice in posix_fadvise() that specify the access pattern that is likely to be used. Availability: Unix. New in version 3.3. | python.library.os#os.POSIX_FADV_NORMAL |
os.POSIX_FADV_NORMAL
os.POSIX_FADV_SEQUENTIAL
os.POSIX_FADV_RANDOM
os.POSIX_FADV_NOREUSE
os.POSIX_FADV_WILLNEED
os.POSIX_FADV_DONTNEED
Flags that can be used in advice in posix_fadvise() that specify the access pattern that is likely to be used. Availability: Unix. New in version 3.3. | python.library.os#os.POSIX_FADV_RANDOM |
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