python – How can I iterate over files in a given directory?

python – How can I iterate over files in a given directory?

Python 3.6 version of the above answer, using os – assuming that you have the directory path as a str object in a variable called directory_in_str:

import os

directory = os.fsencode(directory_in_str)
    
for file in os.listdir(directory):
     filename = os.fsdecode(file)
     if filename.endswith(.asm) or filename.endswith(.py): 
         # print(os.path.join(directory, filename))
         continue
     else:
         continue

Or recursively, using pathlib:

from pathlib import Path

pathlist = Path(directory_in_str).glob(**/*.asm)
for path in pathlist:
     # because path is object not string
     path_in_str = str(path)
     # print(path_in_str)

• Use rglob to replace glob(**/*.asm) with rglob(*.asm)
  • This is like calling Path.glob() with **/ added in front of the given relative pattern:

from pathlib import Path

pathlist = Path(directory_in_str).rglob(*.asm)
for path in pathlist:
     # because path is object not string
     path_in_str = str(path)
     # print(path_in_str)

---

Original answer:

import os

for filename in os.listdir(/path/to/dir/):
    if filename.endswith(.asm) or filename.endswith(.py): 
         # print(os.path.join(directory, filename))
        continue
    else:
        continue

This will iterate over all descendant files, not just the immediate children of the directory:

import os

for subdir, dirs, files in os.walk(rootdir):
    for file in files:
        #print os.path.join(subdir, file)
        filepath = subdir + os.sep + file

        if filepath.endswith(.asm):
            print (filepath)

python – How can I iterate over files in a given directory?

You can try using glob module:

import glob

for filepath in glob.iglob(my_dir/*.asm):
    print(filepath)

and since Python 3.5 you can search subdirectories as well:

glob.glob(**/*.txt, recursive=True) # => [2.txt, sub/3.txt]

From the docs:

The glob module finds all the pathnames matching a specified pattern according to the rules used by the Unix shell, although results are returned in arbitrary order. No tilde expansion is done, but *, ?, and character ranges expressed with [] will be correctly matched.