pip install fails when deploying via Docker

[vikasbhatia]

Describe the bug
Hey, I'm trying to deploy my bot via Docker and have listed reactionmenu in my requirements.txt. discord.py is listed above reactionmenu in the order. I'm not 100% sure this is a reactionmenu issue, but I noticed that it's running a setup where it tries to import discord which - going by the error ModuleNotFoundError: No module named 'discord' - it considers not technically installed yet (see full error below).

To Reproduce
Minimal code to reproduce the bug/error
My Dockerfile:

FROM python:3.10
WORKDIR /Legion
COPY requirements.txt /Legion
RUN pip install -r requirements.txt
COPY . /Legion
CMD python Bot.py

Installation succeeds if I take reactionmenu out of my requirements.txt and install it separately:

FROM python:3.10
WORKDIR /Legion
COPY requirements.txt /Legion
RUN pip install -r requirements.txt
RUN pip install reactionmenu
COPY . /Legion
CMD python Bot.py

Traceback if any

#7 5.329 Collecting reactionmenu
#7 5.342   Downloading reactionmenu-3.1.1.tar.gz (74 kB)
#7 5.348      ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 74.7/74.7 kB 28.4 MB/s eta 0:00:00
#7 5.358   Preparing metadata (setup.py): started
#7 5.928   Preparing metadata (setup.py): finished with status 'error'
#7 5.934   error: subprocess-exited-with-error
#7 5.934   
#7 5.934   × python setup.py egg_info did not run successfully.
#7 5.934   │ exit code: 1
#7 5.934   ╰─> [10 lines of output]
#7 5.934       Traceback (most recent call last):
#7 5.934         File "<string>", line 2, in <module>
#7 5.934         File "<pip-setuptools-caller>", line 34, in <module>
#7 5.934         File "/tmp/pip-install-nxkdkchh/reactionmenu_30295bb936e143ea8e135fbca65ce21f/setup.py", line 3, in <module>
#7 5.934           from reactionmenu import __source__
#7 5.934         File "/tmp/pip-install-nxkdkchh/reactionmenu_30295bb936e143ea8e135fbca65ce21f/reactionmenu/__init__.py", line 12, in <module>
#7 5.934           from .buttons import ReactionButton, ViewButton
#7 5.934         File "/tmp/pip-install-nxkdkchh/reactionmenu_30295bb936e143ea8e135fbca65ce21f/reactionmenu/buttons.py", line 48, in <module>
#7 5.934           import discord
#7 5.934       ModuleNotFoundError: No module named 'discord'
#7 5.934       [end of output]
#7 5.934   
#7 5.934   note: This error originates from a subprocess, and is likely not a problem with pip.
#7 5.936 error: metadata-generation-failed
#7 5.936 
#7 5.936 × Encountered error while generating package metadata.
#7 5.936 ╰─> See above for output.
#7 5.936 
#7 5.936 note: This is an issue with the package mentioned above, not pip.
#7 5.936 hint: See above for details.
------
Error failed to fetch an image or build from source: error building: executor failed running [/bin/sh -c pip install -r requirements.txt]: exit code: 1

Required Checklist

• I am using discord.py 2.0 or higher
• I am using reactionmenu 3.1.0 or higher
• I have the required intents enabled

Version Info
What version of reactionmenu/discord.py are you using?

• reactionmenu: 3.1.0
• discord.py: 2.0.1

[Defxult]

Refer to my most recent comment on a similar issue here: #42 (comment)

Thanks!