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Change the directory tree walking example to use clearer variable

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names, some suggested by Joe Ellsworth.
This commit is contained in:
Guido van Rossum 1999-08-03 21:52:29 +00:00
parent 6a619f44c5
commit 068bdb181d
1 changed files with 14 additions and 11 deletions
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25
Doc/lib/libstat.tex
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@ -118,23 +118,26 @@ Example:
import os, sys import os, sys
from stat import * from stat import *
def process(dir, func): def walktree(dir, callback):
'''recursively descend the directory rooted at dir, calling func for '''recursively descend the directory rooted at dir,
each regular file''' calling the callback function for each regular file'''
for f in os.listdir(dir): for f in os.listdir(dir):
mode = os.stat('%s/%s' % (dir, f))[ST_MODE] pathname = '%s/%s' % (dir, f)
mode = os.stat(pathname)[ST_MODE]
if S_ISDIR(mode): if S_ISDIR(mode):
# recurse into directory # It's a directory, recurse into it
process('%s/%s' % (dir, f), func) walktree(pathname, callback)
elif S_ISREG(mode): elif S_ISREG(mode):
func('%s/%s' % (dir, f)) # It's a file, call the callback function
callback(pathname)
else: else:
print 'Skipping %s/%s' % (dir, f) # Unknown file type, print a message
print 'Skipping %s' % pathname
def f(file): def visitfile(file):
print 'frobbed', file print 'visiting', file
if __name__ == '__main__': if __name__ == '__main__':
process(sys.argv[1], f) walktree(sys.argv[1], visitfile)
\end{verbatim} \end{verbatim}