Many times while doing file processing python, we need to know file size in bytes/KBs/MBs. You can get file size using multiple methods, following are two simple methods to get file size using os module.
I have run this file for two inputs,one is image and another is empty file.
| ################################################################################################ | |
| # name: file_size.py | |
| # desc: Getting gile size using python | |
| # date: 2019-02-10 | |
| # Author: conquistadorjd | |
| ################################################################################################ | |
| import io, os | |
| print('*** Program Started ***') | |
| image_path_input = '/home/conquistador/code/github/python-01-utilities/file/input/' | |
| image_name_input = 'file_size-01.jpg' #'file_size-02' | |
| if os.stat(image_path_input + image_name_input).st_size ==0 : | |
| print('Input file is empty') | |
| else : | |
| print('Input file is not empty') | |
| print('File size (in Bytes) : ',os.stat(image_path_input + image_name_input).st_size) | |
| print('File size (in Bytes) : ',os.path.getsize (image_path_input+image_name_input)) | |
| image_name_input = 'file_size-02' | |
| if os.stat(image_path_input + image_name_input).st_size ==0 : | |
| print('Input file is empty') | |
| else : | |
| print('Input file is not empty') | |
| print('File size (in Bytes) : ',os.stat(image_path_input + image_name_input).st_size) | |
| print('File size (in Bytes) : ',os.path.getsize (image_path_input+image_name_input)) | |
| print('*** Program Ended ***') |
Here is the output of the program
$ python3.6 file_size.py *** Program Started *** Input file is not empty File size (in Bytes) : 147162 File size (in Bytes) : 147162 Input file is empty File size (in Bytes) : 0 File size (in Bytes) : 0 *** Program Ended ***
Actual file size
I have added a check to see if file size is empty, you might need to check file size before doing any processing on files.