os.walk

问题 I'm trying to run the following script which simply reads and image and saves it again: from PIL import Image import os rootdir = '/home/user/Desktop/sample' for subdir, dirs, files in os.walk(rootdir): for file in files: im = Image.open(file) im.save(file) I however get the following error: Traceback (most recent call last): File "test.py", line 10, in <module> im = Image.open(file) File "/usr/lib/python2.7/dist-packages/PIL/Image.py", line 2258, in open fp = builtins.open(filename, "rb")

问题 I'm trying to run the following script which simply reads and image and saves it again: from PIL import Image import os rootdir = '/home/user/Desktop/sample' for subdir, dirs, files in os.walk(rootdir): for file in files: im = Image.open(file) im.save(file) I however get the following error: Traceback (most recent call last): File "test.py", line 10, in <module> im = Image.open(file) File "/usr/lib/python2.7/dist-packages/PIL/Image.py", line 2258, in open fp = builtins.open(filename, "rb")

问题 I want to open the main folder containing all files (1), search though the files and only grab any .txt file with "mtn" in the title (2), print a the list of txt files (3) then list the txt files in a csv file, including their full path (4). I can do (1) through (3) with my current code, however the CSV file that gets produced only contains the last filename, so I think there is something wrong with the order of my loops mtnpath = r"G:\somepath\" num_files = 0 for root, dirs, files in os.walk

问题 If I have a folder structure as follows: folder \ sub1\sub1_1 \ sub1\sub1_2 \ sub1\sub1_3 . . . \ sub2\sub2_1 \ sub2\sub2_2 \ sub2\sub2_3 . . . I want make files for each subfolder use subfolders' name. How can I do it in Python? Thanks. Expected result: folder \ sub1\sub1_1\sub1_1.xlsx \ sub1\sub1_2\sub2_2.xlsx \ sub1\sub1_3\sub3_3.xlsx . . . \ sub2\sub2_1\sub2_1.xlsx \ sub2\sub2_2\sub2_2.xlsx \ sub2\sub2_3\sub2_3.xlsx . . . Here is what I have tried: import os dir_name = "D:/folder" for

问题 I have a procedure that os.walk s a directory and its subdirectories to filter pdf files, separating out their names and corresponding pathnames. The issue I am having is that it will scan the topmost directory and print the appropriate filename e.g. G:/Books/Title.Pdf but the second it scans a subfolder e.g G:/Books/Sub Folder/Title.pdf it will print the following G:/Books/Sub Folder\\Title.Pdf (which is obviously an invalid path name). It will also add \\ to any subfolders within subfolders

问题 I have a procedure that os.walk s a directory and its subdirectories to filter pdf files, separating out their names and corresponding pathnames. The issue I am having is that it will scan the topmost directory and print the appropriate filename e.g. G:/Books/Title.Pdf but the second it scans a subfolder e.g G:/Books/Sub Folder/Title.pdf it will print the following G:/Books/Sub Folder\\Title.Pdf (which is obviously an invalid path name). It will also add \\ to any subfolders within subfolders

问题 Below is my code, what I am trying to achieve is walking through the OS generating a MD5 hash of every file the code is functional, however, I receive the error in the title "ioerror errno 13 permission denied: 'C:\pagefile.sys'" when I try to run the file from C:\ is there a way i can run this as an admin? Even when I run cmd as an admin that does not work, thank you in advance. import os, hashlib current_dir = os.getcwd() for root,dirs,files in os.walk(current_dir): for f in files: current

问题 I’m new to Python and have been teaching myself with textbooks and StackOverflow. I seem to learn best from real world examples from this site. I’m hoping someone can help me with my current problem. I have a directory (folder) with about 1,000 files. The files have names with prefixes (patterns) such as, aaa_* , bbb_* , ccc_* and so on. I would like to iterate through the directory and copy all the files that have the specified prefix and move them to a new directory with that prefix name.

问题 I want to save image with original file name for example if original file name is hero so the processed image name should be hero_Zero.png . I dont know how to pass file name in def run(dirs, img): Below code is correct and modified. def run(dirs, img, file_): for (x, y) in labels: component = uf.find(labels[(x, y)]) labels[(x, y)] = component if labels[(x, y)]==0: Zero[y][x]=int(255) count=count+1 if count<=43: continue elif count>43: Zeroth = Image.fromarray(Zero) Zeroth.save(os.path.join

问题 I'm writing a simple function that walks through a directory tree looking for folders of a certain name. What I'm after is a match's parent path. E.g., for "C:/a/b/c/MATCH" I want "C:/a/b/c". I don't need duplicate parents or paths to subfolder matches, so if there's a "C:/a/b/c/d/e/f/MATCH", I don't need it. So, during my walk, once I have a parent, I want to iterate to the next current root. Below is what I have so far, including a comment where I'm stuck. def FindProjectSubfolders