trying to loop glob/md5 [list comprehension solution]

[jdjohns74]

I've never written a Python program before and I'm trying to read a config file with file path/names (eg. c:\\python24\\* .dll, ... *.exe) to create an ouput file of filename + md5 values. I'm confused. I'm trying to lern how to use Wing IDE and step through the Stack Data. It seems to be working but on the

for fn in filelist:
data = file(fn,'rb').r ead()

I get a

IOError: (2, 'No such file or directory', 'c')

Traceback (innermost last):

File "c:\Python examples\md5mak r_test4.py", line 1, in ?
#!/usr/bin/python
File "c:\Python examples\md5mak r_test4.py", line 20, in ?
data = file(fn,'rb').r ead()

#!/usr/bin/python
# Filename: md5makr_test4.py
 
import sys, os, os.path, glob, md5, ConfigParser
 
config = ConfigParser.ConfigParser()
config.read('md5makr.ini')
 
outputfilname = config.get('general', 'outputfile')
f = file(outputfilname,'wt')
fileconfig = config.get('general', 'inputfiles')
 
fl = file(fileconfig,'r')
fileData = fl.read()
 
for f1 in glob.glob(fileData):
  filelist = f1
 
for fn in filelist:
  data = file(fn,'rb').read()
  hexstring = md5.md5(data).hexdigest()
  f.write(fn + '\t' + hexstring + '/n')
 
f.close()

Any insight or help would be appreciated.

[bartonc]

In order to make a list in a loop you must append to an empty list.
Use print statements to see what your data looks like; you may need to extract only a piece of glob.glob()

filelist=[]
for f1 in glob.glob(fileData):
    print f1
    filelist.append(f1)
 

[jdjohns74]

In order to make a list in a loop you must append to an empty list.
Use print statements to see what your data looks like; you may need to extract only a piece of glob.glob()

filelist=[]
for f1 in glob.glob(fileData):
    print f1
    filelist.append(f1)
 

Thanks. I'll give it a shot.

[bartonc]

Thanks. I'll give it a shot.

Once you know that works,
it's even tighter if you use a list comprehension:

fileList = [f1 for f1 in glob.glob(filedata)]