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os.pathconf(path, name)
Description
The method pathconf(
Syntax
Following is the syntax for pathconf() method:
os.pathconf(path, name)
Parameters
) returns system configuration information relevant to a named file.
• path -- This is the file path.
• name -- This 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).
The names known to the host operating system are given in theos.pathconf_names dictionary.
Return Value
This method returns system configuration information of a file.
Example
The following example shows the usage of pathconf() method.
#!/usr/bin/python
import os, sys
print "%s" % os.pathconf_names
# Retrieve maximum length of a filename
no = os.pathconf('a2.py', 'PC_NAME_MAX')
print "Maximum length of a filename :%d" % no
# Retrieve file size
no = os.pathconf('a2.py', 'PC_FILESIZEBITS')
print "file size in bits :%d" % no
Let us compile and run the above program, this will produce the following result:
{'PC_MAX_INPUT': 2, 'PC_VDISABLE': 8, 'PC_SYNC_IO': 9,
'PC_SOCK_MAXBUF': 12, 'PC_NAME_MAX': 3, 'PC_MAX_CANON': 1,
'PC_PRIO_IO': 11, 'PC_CHOWN_RESTRICTED': 6, 'PC_ASYNC_IO': 10,
'PC_NO_TRUNC': 7, 'PC_FILESIZEBITS': 13, 'PC_LINK_MAX': 0,
'PC_PIPE_BUF': 5, 'PC_PATH_MAX': 4}
Maximum length of a filename :255
file size in bits : 64
os.pipe()
Description
The method pipe() creates a pipe and returns a pair of file descriptors (r, w) usable for reading and writing,
respectively
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