python copy files by wildcards

Question

I am learning python (python 3) and I can copy 1 file to a new directory by doing this

import shutil 
shutil.copyfile('C:/test/test.txt', 'C:/lol/test.txt')

What I am now trying to do is to copy all *.txt files from C:/ to C:/test

*.txt is a wildcard to search for all the text files on my hard drive

Unreadable

Answer 1

import glob
import shutil
dest_dir = "C:/test"
for file in glob.glob(r'C:/*.txt'):
    print(file)
    shutil.copy(file, dest_dir)

Croydon

What is the r in glob.glob(r ? – Theona

I ask the same... For example, I dindn't found anything regarding this r on the official doc (docs.pytahon.org/3.5/library/glob.html). Also, I tried to use the solution without the argument and it seems and nothing has changed. Some glob master: please, clarify this doubt. Anyway: great answer :). – Schoolmaster

I found out the answer @Schoolmaster . The r is used before a string in python to override escape sequences (ie \n will be considered as \n and not as a new line). In the answer, using r makes no difference because no escape sequences are there, but if the file separator was \ instead of /, then the impact would be noticed. To put it in other words, r has got nothing to do with glob. It is a prefix that can be used before strings in python – Theona

It's called a raw string in python :) docs.python.org/2.0/ref/strings.html – Oldest

Note: glob doesn't seem to resolve ~ for the home directory on linux. – Razor

Answer 2

Use glob.glob() to get a list of the matching filenames and then iterate over the list.

Supernational

damnit 2 seconds too early :D – Ordinance

import shutil, glob dest_dir = "C:\\" for f in glob.glob("*.dat"): shutil.copy(f, dest_dir) – Unreadable

To be more useful, this answer should explain how to use it. – Whelp

Answer 3

I am using python 2.7 test first to make sure it will work. I used the wildcard * because I add the date to all my text files. filename1_2016_04_18.txt Also some of the text files have different end users attached to the text file. filename2_username.txt

import os, glob

directorypath = 'C:\\Program Files\\Common Files'
os.chdir(directorypath)

files = ['filename1', 'filename2', 'filename3']
print ('A %(files)s'% vars())
for filename in files:
    file1 = filename + "*" + "." + "txt"; print ('1 %(file1)s'% vars())
    file2 = ('%(file1)s') % vars (); print ('2 %(file2)s'% vars())
    file3=glob.glob(file2); print ('3 %(file3)s'% vars())
    for filename4 in file3:
        try:
            if os.path.isfile(filename4):
                    print ('I am deleteing this file %(filename4)s'% vars())
                    os.remove(filename4)
            else:    ## Show an error ##
                    print("Error can not delete text file : %s because file not found" % filename4)
        except OSError, e:  ## if failed, report it back to the user ##
                print ("Error: %s - %s." % (e.filename,e.strerror))

Anny

By checking whether a file with a name that glob.glob just returned actually exists you are making it... thread-safe? (You are not.) – Commodus

What is the difference between variables file2 and file1? – Commodus