def split(p):
"""Split a pathname. Returns tuple "(head, tail)" where "tail" is
-everything after the final slash. Either part may be empty"""
+ everything after the final slash. Either part may be empty."""
i = p.rfind('/') + 1
head, tail = p[:i], p[i:]
if head and head <> '/'*len(head):
def splitext(p):
"""Split the extension from a pathname. Extension is everything from the
-last dot to the end. Returns "(root, ext)", either part may be empty"""
+ last dot to the end. Returns "(root, ext)", either part may be empty."""
root, ext = '', ''
for c in p:
if c == '/':
def splitdrive(p):
"""Split a pathname into drive and path. On Posix, drive is always
-empty"""
+ empty."""
return '', p
def walk(top, func, arg):
"""walk(top,func,arg) calls func(arg, d, files) for each directory "d"
-in the tree rooted at "top" (including "top" itself). "files" is a list
-of all the files and subdirs in directory "d".
-"""
+ in the tree rooted at "top" (including "top" itself). "files" is a list
+ of all the files and subdirs in directory "d".
+ """
try:
names = os.listdir(top)
except os.error:
def expanduser(path):
"""Expand ~ and ~user constructions. If user or $HOME is unknown,
-do nothing"""
+ do nothing."""
if path[:1] <> '~':
return path
i, n = 1, len(path)
while i < n and path[i] <> '/':
- i = i+1
+ i = i + 1
if i == 1:
if not os.environ.has_key('HOME'):
return path
except KeyError:
return path
userhome = pwent[5]
- if userhome[-1:] == '/': i = i+1
+ if userhome[-1:] == '/': i = i + 1
return userhome + path[i:]
def expandvars(path):
"""Expand shell variables of form $var and ${var}. Unknown variables
-are left unchanged"""
+ are left unchanged."""
global _varprog
if '$' not in path:
return path