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Kirill Smelkov
cpython
Commits
c4a70fbb
Commit
c4a70fbb
authored
Sep 05, 2006
by
Tim Peters
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Add missing svn:eol-style property to text files.
parent
dd5e7b9a
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Lib/genericpath.py
Lib/genericpath.py
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Lib/genericpath.py
View file @
c4a70fbb
"""
Path operations common to more than one OS
Do not use directly. The OS specific modules import the appropriate
functions from this module themselves.
"""
import
os
import
stat
__all__
=
[
'commonprefix'
,
'exists'
,
'getatime'
,
'getctime'
,
'getmtime'
,
'getsize'
,
'isdir'
,
'isfile'
]
# Does a path exist?
# This is false for dangling symbolic links on systems that support them.
def
exists
(
path
):
"""Test whether a path exists. Returns False for broken symbolic links"""
try
:
st
=
os
.
stat
(
path
)
except
os
.
error
:
return
False
return
True
# This follows symbolic links, so both islink() and isdir() can be true
# for the same path ono systems that support symlinks
def
isfile
(
path
):
"""Test whether a path is a regular file"""
try
:
st
=
os
.
stat
(
path
)
except
os
.
error
:
return
False
return
stat
.
S_ISREG
(
st
.
st_mode
)
# Is a path a directory?
# This follows symbolic links, so both islink() and isdir()
# can be true for the same path on systems that support symlinks
def
isdir
(
s
):
"""Return true if the pathname refers to an existing directory."""
try
:
st
=
os
.
stat
(
s
)
except
os
.
error
:
return
False
return
stat
.
S_ISDIR
(
st
.
st_mode
)
def
getsize
(
filename
):
"""Return the size of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_size
def
getmtime
(
filename
):
"""Return the last modification time of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_mtime
def
getatime
(
filename
):
"""Return the last access time of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_atime
def
getctime
(
filename
):
"""Return the metadata change time of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_ctime
# Return the longest prefix of all list elements.
def
commonprefix
(
m
):
"Given a list of pathnames, returns the longest common leading component"
if
not
m
:
return
''
s1
=
min
(
m
)
s2
=
max
(
m
)
n
=
min
(
len
(
s1
),
len
(
s2
))
for
i
in
xrange
(
n
):
if
s1
[
i
]
!=
s2
[
i
]:
return
s1
[:
i
]
return
s1
[:
n
]
"""
Path operations common to more than one OS
Do not use directly. The OS specific modules import the appropriate
functions from this module themselves.
"""
import
os
import
stat
__all__
=
[
'commonprefix'
,
'exists'
,
'getatime'
,
'getctime'
,
'getmtime'
,
'getsize'
,
'isdir'
,
'isfile'
]
# Does a path exist?
# This is false for dangling symbolic links on systems that support them.
def
exists
(
path
):
"""Test whether a path exists. Returns False for broken symbolic links"""
try
:
st
=
os
.
stat
(
path
)
except
os
.
error
:
return
False
return
True
# This follows symbolic links, so both islink() and isdir() can be true
# for the same path ono systems that support symlinks
def
isfile
(
path
):
"""Test whether a path is a regular file"""
try
:
st
=
os
.
stat
(
path
)
except
os
.
error
:
return
False
return
stat
.
S_ISREG
(
st
.
st_mode
)
# Is a path a directory?
# This follows symbolic links, so both islink() and isdir()
# can be true for the same path on systems that support symlinks
def
isdir
(
s
):
"""Return true if the pathname refers to an existing directory."""
try
:
st
=
os
.
stat
(
s
)
except
os
.
error
:
return
False
return
stat
.
S_ISDIR
(
st
.
st_mode
)
def
getsize
(
filename
):
"""Return the size of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_size
def
getmtime
(
filename
):
"""Return the last modification time of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_mtime
def
getatime
(
filename
):
"""Return the last access time of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_atime
def
getctime
(
filename
):
"""Return the metadata change time of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_ctime
# Return the longest prefix of all list elements.
def
commonprefix
(
m
):
"Given a list of pathnames, returns the longest common leading component"
if
not
m
:
return
''
s1
=
min
(
m
)
s2
=
max
(
m
)
n
=
min
(
len
(
s1
),
len
(
s2
))
for
i
in
xrange
(
n
):
if
s1
[
i
]
!=
s2
[
i
]:
return
s1
[:
i
]
return
s1
[:
n
]
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