# Error in building wheel backports.zoneinfo
**URL:** https://forum.djangoproject.com/t/error-in-building-wheel-backports-zoneinfo/30721
**Category:** Mystery Errors
**Created:** [May 1, 2024, 2:18pm UTC](https://forum.djangoproject.com/t/error-in-building-wheel-backports-zoneinfo/30721 "2024-05-01T14:18:55Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@fatimahazzahra9](https://forum.djangoproject.com/u/fatimahazzahra9)
#### Post date: [May 1, 2024, 2:18pm UTC](https://forum.djangoproject.com/t/error-in-building-wheel-backports-zoneinfo/30721/1 "2024-05-01T14:18:55Z")
Hello
I am a real newbie in this… and I get this error after trying many things. Is there anything I could do about this? I am using visual studio code to run the terminal for django project. I am trying to install the requirements for django project. Thank you
Here the error:
```auto
Collecting backports.zoneinfo
Using cached backports.zoneinfo-0.2.1.tar.gz (74 kB)
Installing build dependencies ... done
Getting requirements to build wheel ... done
Preparing metadata (pyproject.toml) ... done
Building wheels for collected packages: backports.zoneinfo
Building wheel for backports.zoneinfo (pyproject.toml) ... error
error: subprocess-exited-with-error
× Building wheel for backports.zoneinfo (pyproject.toml) did not run successfully.
│ exit code: 1
╰─> [38 lines of output]
running bdist_wheel
running build
running build_py
creating build
creating build\lib.win-amd64-cpython-312
creating build\lib.win-amd64-cpython-312\backports
copying src\backports\ __init__.py -> build\lib.win-amd64-cpython-312\backports
creating build\lib.win-amd64-cpython-312\backports\zoneinfo
copying src\backports\zoneinfo\_common.py -> build\lib.win-amd64-cpython-312\backports\zoneinfo
copying src\backports\zoneinfo\_tzpath.py -> build\lib.win-amd64-cpython-312\backports\zoneinfo
copying src\backports\zoneinfo\_version.py -> build\lib.win-amd64-cpython-312\backports\zoneinfo
copying src\backports\zoneinfo\_zoneinfo.py -> build\lib.win-amd64-cpython-312\backports\zoneinfo
copying src\backports\zoneinfo\ __init__.py -> build\lib.win-amd64-cpython-312\backports\zoneinfo
running egg_info
writing src\backports.zoneinfo.egg-info\PKG-INFO
writing dependency_links to src\backports.zoneinfo.egg-info\dependency_links.txt
writing requirements to src\backports.zoneinfo.egg-info\requires.txt
writing top-level names to src\backports.zoneinfo.egg-info\top_level.txt
reading manifest file 'src\backports.zoneinfo.egg-info\SOURCES.txt'
reading manifest template 'MANIFEST.in'
warning: no files found matching '*.png' under directory 'docs'
warning: no files found matching '*.svg' under directory 'docs'
no previously-included directories found matching 'docs\_build'
no previously-included directories found matching 'docs\_output'
adding license file 'LICENSE'
adding license file 'licenses/LICENSE_APACHE'
writing manifest file 'src\backports.zoneinfo.egg-info\SOURCES.txt'
copying src\backports\zoneinfo\ __init__.pyi -> build\lib.win-amd64-cpython-312\backports\zoneinfo
copying src\backports\zoneinfo\py.typed -> build\lib.win-amd64-cpython-312\backports\zoneinfo
running build_ext
building 'backports.zoneinfo._czoneinfo' extension
creating build\temp.win-amd64-cpython-312
creating build\temp.win-amd64-cpython-312\Release
creating build\temp.win-amd64-cpython-312\Release\lib
"C:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.39.33519\bin\HostX86\x64\cl.exe" /c /nologo /O2 /W3 /GL /DNDEBUG /MD "-IE:\pasca-fatimah\pelatihan python\try again\my_ecommerce\env\include" -IC:\Users\fina\AppData\Local\Programs\Python\Python312\include -IC:\Users\fina\AppData\Local\Programs\Python\Python312\Include "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Tools\MSVC\14.39.33519\include" "-IC:\Program Files (x86)\Microsoft Visual Studio\2022\BuildTools\VC\Auxiliary\VS\include" /Tclib/zoneinfo_module.c /Fobuild\temp.win-amd64-cpython-312\Release\lib/zoneinfo_module.obj
zoneinfo_module.c
C:\Users\fina\AppData\Local\Programs\Python\Python312\include\pyconfig.h(59): fatal error C1083: Cannot open include file: 'io.h': No such file or directory
error: command 'C:\\Program Files (x86)\\Microsoft Visual Studio\\2022\\BuildTools\\VC\\Tools\\MSVC\\14.39.33519\\bin\\HostX86\\x64\\cl.exe' failed with exit code 2
[end of output]
note: This error originates from a subprocess, and is likely not a problem with pip.
ERROR: Failed building wheel for backports.zoneinfo
Failed to build backports.zoneinfo
ERROR: Could not build wheels for backports.zoneinfo, which is required to install pyproject.toml-based projects
python_version<3.9 : The term 'python_version<3.9' is not recognized as the name of a cmdlet, function, script file, or operable
program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.
At line:1 char:32
+ pip install backports.zoneinfo;python_version<"3.9"
+ ~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : ObjectNotFound: (python_version<3.9:String) [], CommandNotFoundException
+ FullyQualifiedErrorId : CommandNotFoundException
```
Thank you very much if there’s any information or solution for this
---
### Author:  [@KenWhitesell](https://forum.djangoproject.com/u/KenWhitesell)
#### Post date: [May 1, 2024, 5:18pm UTC](https://forum.djangoproject.com/t/error-in-building-wheel-backports-zoneinfo/30721/2 "2024-05-01T17:18:30Z")
Quoting directly from the docs at [backports.zoneinfo · PyPI](https://pypi.org/project/backports.zoneinfo/)
> Support for `backports.zoneinfo` in Python 3.9+ is currently minimal, since it is expected that you would use the standard library `zoneinfo` module instead.
also
> If you do not support anything earlier than Python 3.9, **you do not need this library** ;
You probably shouldn’t even be trying to use this with Python 3.12.
---
### Author:  [@fatimahazzahra9](https://forum.djangoproject.com/u/fatimahazzahra9)
#### Post date: [May 6, 2024, 11:56pm UTC](https://forum.djangoproject.com/t/error-in-building-wheel-backports-zoneinfo/30721/3 "2024-05-06T23:56:57Z")
Thank you very much… i’d changed it to 3.8 but i faced another problem afterwards so I was getting back to 3.12 and I installed it manually. Luckily it works… and I’ve done it.
Thank you very much for your kind response
---
### Author:  [@nyumahmobiletyres](https://forum.djangoproject.com/u/nyumahmobiletyres)
#### Post date: [March 8, 2025, 7:01pm UTC](https://forum.djangoproject.com/t/error-in-building-wheel-backports-zoneinfo/30721/4 "2025-03-08T19:01:34Z")
thanks for information