I need to compare file sizes and other attributes for a PRE upgrade and POST upgrade output files. O would like to get the list of files from both folders and compare the sizes, names and type. I am new to python and really need help writing a python script.
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compare file sizes using python
Best answer by david_r
If you're not comfortable using Python, my recommendation would be to simply use the "Directory and File Pathnames" reader, it can give you the file sizes straight away:
That way you can avoid using Python.
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Try something like:
import os
def compare_file_sizes(feature):
filesize1 = os.stat(feature.getAttribute('filename1')).st_size
filesize2 = os.stat(feature.getAttribute('filename2')).st_size
feature.setAttribute('filename1_size', filesize1)
feature.setAttribute('filename2_size', filesize2)Given an input feature with the attributes "filename1" and "filename2", it will add the two attributes "filename1_size" and "filename2_size" to the output feature.
You can e.g. combine this with the "Directory and File Pathnames" reader to list the contents of any directory.
@david_r thanks for your reply, do I replace 'filename1' and 'filename2' with the file path and name? I need better understanding on how to apply this code.
Thanks
- Best Answer
If you're not comfortable using Python, my recommendation would be to simply use the "Directory and File Pathnames" reader, it can give you the file sizes straight away:
That way you can avoid using Python.
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