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Kirill Smelkov
cpython
Commits
2a55479d
Commit
2a55479d
authored
Sep 05, 2006
by
Tim Peters
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Add missing svn:eol-style property to text files.
parent
5088e718
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Lib/genericpath.py
Lib/genericpath.py
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Lib/genericpath.py
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2a55479d
"""
"""
Path operations common to more than one OS
Path operations common to more than one OS
Do not use directly. The OS specific modules import the appropriate
Do not use directly. The OS specific modules import the appropriate
functions from this module themselves.
functions from this module themselves.
"""
"""
import
os
import
os
import
stat
import
stat
__all__
=
[
'commonprefix'
,
'exists'
,
'getatime'
,
'getctime'
,
'getmtime'
,
__all__
=
[
'commonprefix'
,
'exists'
,
'getatime'
,
'getctime'
,
'getmtime'
,
'getsize'
,
'isdir'
,
'isfile'
]
'getsize'
,
'isdir'
,
'isfile'
]
# Does a path exist?
# Does a path exist?
# This is false for dangling symbolic links on systems that support them.
# This is false for dangling symbolic links on systems that support them.
def
exists
(
path
):
def
exists
(
path
):
"""Test whether a path exists. Returns False for broken symbolic links"""
"""Test whether a path exists. Returns False for broken symbolic links"""
try
:
try
:
st
=
os
.
stat
(
path
)
st
=
os
.
stat
(
path
)
except
os
.
error
:
except
os
.
error
:
return
False
return
False
return
True
return
True
# This follows symbolic links, so both islink() and isdir() can be true
# This follows symbolic links, so both islink() and isdir() can be true
# for the same path ono systems that support symlinks
# for the same path ono systems that support symlinks
def
isfile
(
path
):
def
isfile
(
path
):
"""Test whether a path is a regular file"""
"""Test whether a path is a regular file"""
try
:
try
:
st
=
os
.
stat
(
path
)
st
=
os
.
stat
(
path
)
except
os
.
error
:
except
os
.
error
:
return
False
return
False
return
stat
.
S_ISREG
(
st
.
st_mode
)
return
stat
.
S_ISREG
(
st
.
st_mode
)
# Is a path a directory?
# Is a path a directory?
# This follows symbolic links, so both islink() and isdir()
# This follows symbolic links, so both islink() and isdir()
# can be true for the same path on systems that support symlinks
# can be true for the same path on systems that support symlinks
def
isdir
(
s
):
def
isdir
(
s
):
"""Return true if the pathname refers to an existing directory."""
"""Return true if the pathname refers to an existing directory."""
try
:
try
:
st
=
os
.
stat
(
s
)
st
=
os
.
stat
(
s
)
except
os
.
error
:
except
os
.
error
:
return
False
return
False
return
stat
.
S_ISDIR
(
st
.
st_mode
)
return
stat
.
S_ISDIR
(
st
.
st_mode
)
def
getsize
(
filename
):
def
getsize
(
filename
):
"""Return the size of a file, reported by os.stat()."""
"""Return the size of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_size
return
os
.
stat
(
filename
).
st_size
def
getmtime
(
filename
):
def
getmtime
(
filename
):
"""Return the last modification time of a file, reported by os.stat()."""
"""Return the last modification time of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_mtime
return
os
.
stat
(
filename
).
st_mtime
def
getatime
(
filename
):
def
getatime
(
filename
):
"""Return the last access time of a file, reported by os.stat()."""
"""Return the last access time of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_atime
return
os
.
stat
(
filename
).
st_atime
def
getctime
(
filename
):
def
getctime
(
filename
):
"""Return the metadata change time of a file, reported by os.stat()."""
"""Return the metadata change time of a file, reported by os.stat()."""
return
os
.
stat
(
filename
).
st_ctime
return
os
.
stat
(
filename
).
st_ctime
# Return the longest prefix of all list elements.
# Return the longest prefix of all list elements.
def
commonprefix
(
m
):
def
commonprefix
(
m
):
"Given a list of pathnames, returns the longest common leading component"
"Given a list of pathnames, returns the longest common leading component"
if
not
m
:
return
''
if
not
m
:
return
''
s1
=
min
(
m
)
s1
=
min
(
m
)
s2
=
max
(
m
)
s2
=
max
(
m
)
n
=
min
(
len
(
s1
),
len
(
s2
))
n
=
min
(
len
(
s1
),
len
(
s2
))
for
i
in
xrange
(
n
):
for
i
in
xrange
(
n
):
if
s1
[
i
]
!=
s2
[
i
]:
if
s1
[
i
]
!=
s2
[
i
]:
return
s1
[:
i
]
return
s1
[:
i
]
return
s1
[:
n
]
return
s1
[:
n
]
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