Pyinstaller generates .exe of huge filesize

Asked Oct 07 '21 at 05:26

Active Oct 08 '21 at 02:11

Viewed 111 times

My python script ('file1.py') contains a one line print statement.

#file1.py
print("python to exe")

Pyinstaller library is used and has generated executable file ('file1.exe') for windows

pyinstaller --onefile 'file1.py'

but the generated file size of 'file1.exe' was huge say 350+MB. Using a virtual environment as suggested in the link shared by a member reduced the file size . however when another line is added importing pandas library

#file1.py
import pandas as pd
print("python to exe")

and trying to generate executable the file size increased back to 350+MB. Any ideas welcome to reduce the file size drastically.

edited Oct 08 '21 at 02:11

asked Oct 07 '21 at 05:26

Mohamed Ziauddin

If you Google it, you’ll find tutorials that can explain it much better than we can in an answer here. – The Singularity Oct 07 '21 at 05:29
it was very generalized so looking for specific tips with intuition(if any) – Mohamed Ziauddin Oct 07 '21 at 06:16
You won't be able to find any assistance without providing more details – The Singularity Oct 07 '21 at 06:16
Let me know what kind of details needed, will add it – Mohamed Ziauddin Oct 07 '21 at 06:24
https://stackoverflow.com/help/how-to-ask – The Singularity Oct 07 '21 at 06:25
query is revised – Mohamed Ziauddin Oct 07 '21 at 06:36
`file1.py` contains just one line? – The Singularity Oct 07 '21 at 06:39
Does this answer your question? [Reducing size of pyinstaller exe](https://stackoverflow.com/questions/47692213/reducing-size-of-pyinstaller-exe) – The Singularity Oct 07 '21 at 06:41
file1.py contains only one line print statement and no imports or any other statement. – Mohamed Ziauddin Oct 07 '21 at 07:13
to reduce size drastically you would have to write in C/C++ instead of Python – furas Oct 07 '21 at 09:04
Tried several method as mentioned in the link shared(including venv). it is reducing for single line print statement. However if an additional import pandas library is added then still the file size is 350+MB. Any take on this? – Mohamed Ziauddin Oct 07 '21 at 10:05
PyInstaller normally generates ~10MB executable for a simple hello world program. So there must be something wrong in your environment. For me, the smallest size I could ger is 3.39MB. – gfdsweds Oct 08 '21 at 07:32
@gfdsweds i created a plain virtual env and ran the pyinstaller on a python script containing two lines of code ; import-pandas and a simple print statement. the exe file generated was still 350+MB – Mohamed Ziauddin Oct 08 '21 at 10:11
are you using anaconda? – gfdsweds Oct 08 '21 at 12:56
yes i'm using anaconda – Mohamed Ziauddin Oct 08 '21 at 13:44

Pyinstaller generates .exe of huge filesize

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