{"id":266,"date":"2020-01-24T20:25:50","date_gmt":"2020-01-24T20:25:50","guid":{"rendered":"http:\/\/infobymattcole.com\/?p=266"},"modified":"2020-08-04T01:25:39","modified_gmt":"2020-08-04T01:25:39","slug":"python-how-many-files-in-folder-and-sizes","status":"publish","type":"post","link":"https:\/\/infobymattcole.com\/index.php\/2020\/01\/24\/python-how-many-files-in-folder-and-sizes\/","title":{"rendered":"Python: How Many Files in folder and Sizes"},"content":{"rendered":"\n

In order to check the files and file sizes, we can use the os.path module. <\/p>\n\n\n\n

import os\nfrom os.path import join\nfor (dirname, dirs, files) in os.walk('.'):\n   for filename in files:\n       if filename.endswith('.txt') :\n           thefile = os.path.join(dirname,filename)\n           print (os.path.getsize(thefile), thefile)<\/code><\/pre>\n\n\n\n
Above is the actual code to check the immediate folder (location you put the Python code in. <\/p>\n\n\n\n
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Let’s break this down<\/p>\n\n\n\n
import os\nfrom os.path import join<\/code><\/pre>\n\n\n\n
The first two lines import the OS and Join modules. <\/p>\n\n\n\n
for (dirname, dirs, files) in os.walk('.'):<\/code><\/pre>\n\n\n\n
This code line does the walkthrough, identifying the directories, folders and files, via the os.walk. The  (‘.’) tells us to review the current folder we are in. <\/p>\n\n\n\n
for filename in files:<\/code><\/pre>\n\n\n\n
This line of code will search all files within the folder. <\/p>\n\n\n\n
if filename.endswith('.txt') :<\/code><\/pre>\n\n\n\n
This line of code provides a check. It is checking for any file names that end in .txt. If it does end in .txt then perform the next line(s) of code. <\/p>\n\n\n\n
 thefile = os.path.join(dirname,filename)\n           print (os.path.getsize(thefile), thefile)<\/code><\/pre>\n\n\n\n
These two lines of code perform the function, based on the prior code line. <\/p>\n\n\n\n
The first code joins the folder and filename and places it in the variable thefile.<\/p>\n\n\n\n
The second line of code does two things. <\/p>\n\n\n\n
  • Uses the value ‘thefile’ and gets the file size, <\/li>
  • prints both the file size and the filename.<\/li><\/ul>\n\n\n\n
    \"\"<\/figure><\/div>\n\n\n\n
    Let’s use the above folder as our example. <\/p>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    Running the job for .txt  our result shows the file size as 27, and name. <\/p>\n\n\n\n
       for filename in files:\n       if filename.endswith('.py') :\n           thefile = os.path.join(dirname,filename)\n           print (os.path.getsize(thefile), thefile)<\/code><\/pre>\n\n\n\n
    If I changed the filename search to py, and run it, the following outcome is provided.<\/p>\n\n\n\n
    \"\"<\/figure>\n\n\n\n
    while the Windows version show 1 kb size when viewed, the Python program provides a more detail size. <\/p>\n\n\n\n
    \n\n\n\n