# Pandas installation fails on PYNQ Z2 **URL:** \ **Category:** Support\ **Created:** [June 25, 2022, 1:14am UTC](https://discuss.pynq.io/t/pandas-installation-fails-on-pynq-z2/4382 "2022-06-25T01:14:52Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![developandplay](https://avatars.discourse-cdn.com/v4/letter/d/0ea827/32.png) [@developandplay](https://discuss.pynq.io/u/developandplay)\ **Post date:** [June 25, 2022, 1:14am UTC](https://discuss.pynq.io/t/pandas-installation-fails-on-pynq-z2/4382/1 "2022-06-25T01:14:52Z")
- PYNQ version: 2.5 or 2.7 (images from the pynq website burnt onto the default PYNQ Z2 sdcard) - Board version: PYNQ Z2 I wanted to try the FINN examples on my PYNQ board. When running their install command: `pip3 install finn-examples -v` we can see that pandas is getting installed. Unfortunately during the `Building wheels for pandas` the system throws an error and the entire FINN examples installation fails. More details can be found [here](https://github.com/Xilinx/finn-examples/issues/34). Installing pandas is however more of a general PYNQ issue then a FINN issue so I was wondering: How can pandas be successfully installed on the PYNQ Z2 board? ---
**Author:** ![briansune](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/briansune/32/3087_2.png) [@briansune](https://discuss.pynq.io/u/briansune)\ **Post date:** [June 25, 2022, 2:51am UTC](https://discuss.pynq.io/t/pandas-installation-fails-on-pynq-z2/4382/2 "2022-06-25T02:51:57Z")
Hi, If I didn’t recall faultlessly I did tried to install tensorflow (pandsa as well) on PYNQ 2.7 ZYNQ environment and turns out this is a complete dead water as latest tensorflow only up to Python 3.7. So meantime if you need a Pandas on Python 3.8 with ARM v7l whl to install correctly. ---
**Author:** ![developandplay](https://avatars.discourse-cdn.com/v4/letter/d/0ea827/32.png) [@developandplay](https://discuss.pynq.io/u/developandplay)\ **Post date:** [June 25, 2022, 1:06pm UTC](https://discuss.pynq.io/t/pandas-installation-fails-on-pynq-z2/4382/3 "2022-06-25T13:06:16Z")
@briansune Thank you for the manual wheel installation advice. When using the wheels [here](https://wheel-index.linuxserver.io/ubuntu/) the installation completes quickly. The only issue is that when running `pip3 install finn-examples -v` it ignores all my previous installed pandas, numpy and pynq packages and reinstalls them by building from source. Is there a way to prevent this? ---
**Author:** ![developandplay](https://avatars.discourse-cdn.com/v4/letter/d/0ea827/32.png) [@developandplay](https://discuss.pynq.io/u/developandplay)\ **Post date:** [June 25, 2022, 11:30pm UTC](https://discuss.pynq.io/t/pandas-installation-fails-on-pynq-z2/4382/4 "2022-06-25T23:30:49Z")
Ok so I did find out that the actual culprit is the pynq installer that finn-examples invokes. So just try `pip3 install pynq` and it leads to the same issue. Unfortunately I didn’t manage to tell the pynq installer to not reinstall everything. But I did manage to tell it to use the precompiled wheels for numpy, pandas and cffi. The steps I took are the following: 1. Download `numpy-1.23.0-cp38-cp38-linux_armv7l.whl`, `pandas-1.4.3-cp38-cp38-linux_armv7l.whl` and `cffi-1.15.0-cp38-cp38-linux_armv7l.whl` from [here](https://wheel-index.linuxserver.io/ubuntu/). 2. Run `pip3 install --find-links ??? git+https://github.com/Xilinx/finn-examples.git@dev -v` where `???` is the path where you downloaded the whl files to. This will make the installer use your precompiled files instead of trying to build everything. There should however be a better solution to all of these issues. ---
**Author:** ![briansune](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.pynq.io/briansune/32/3087_2.png) [@briansune](https://discuss.pynq.io/u/briansune)\ **Post date:** [June 26, 2022, 2:41pm UTC](https://discuss.pynq.io/t/pandas-installation-fails-on-pynq-z2/4382/5 "2022-06-26T14:41:43Z")
Good to hear that. So it is confirmed that ARMv7l pandas python 3.8 is good.