Installing pypi packages on termux using pip is not working

while installing pyrogram or telethon on termux using pip I facing error. I'll provide error below.

~ $ pip install telethon
Collecting telethon                                       Downloading Telethon-1.28.5-py3-none-any.whl (600 kB)
     ━━━━━━━━━━━━━━ 600.9/600.9   284.4 kB/s eta 0:00:00
                    kB
Collecting pyaes (from telethon)
  Downloading pyaes-1.6.1.tar.gz (28 kB)
  Installing build dependencies ... done
  Getting requirements to build wheel ... done            Preparing metadata (pyproject.toml) ... error
  error: subprocess-exited-with-error

  × Preparing metadata (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [1 lines of output]
      error: [('/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info/PKG-INFO', '/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info.__bkp__/PKG-INFO', "[Errno 13] Permission denied: '/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info.__bkp__/PKG-INFO'"), ('/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info/dependency_links.txt', '/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info.__bkp__/dependency_links.txt', "[Errno 13] Permission denied: '/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info.__bkp__/dependency_links.txt'"), ('/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info/top_level.txt', '/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info.__bkp__/top_level.txt', "[Errno 13] Permission denied: '/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info.__bkp__/top_level.txt'"), ('/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info/SOURCES.txt', '/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info.__bkp__/SOURCES.txt', "[Errno 13] Permission denied: '/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info.__bkp__/SOURCES.txt'"), ('/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info', '/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info.__bkp__', "[Errno 13] Permission denied: '/data/data/com.termux/files/usr/tmp/pip-modern-metadata-slc24ohr/pyaes.egg-info.__bkp__'")]
      [end of output]

  note: This error originates from a subprocess, and is likely not a problem with pip.
error: metadata-generation-failed

× Encountered error while generating package metadata.
╰─> See above for output.

note: This is an issue with the package mentioned above, not pip.
hint: See above for details.

how can we solve this problem and install packages correctly on termux

I have tried
pkg install python-pip
pip install pyrogram
pip3 install pyrogram
MATHLIB="m" pip install pyrogram
but all of them useless

Are you running this installation over a venv or directly in the OS python? This python env are running over Linux or Mac? Because inside of the error message are mentioned some permission issues to manage the files of this package.

Error appear because telethon was installed earlier, and files, which not removed, disturb to files with same name,
which appearing during installation. Run in termux two commands:

pip uninstall telethon and... <br>
pip install -U telethon

I encountered this issue today and the first thing I got was your question!!

By trying to install it in Venv I could get it to work just fine...!

mkdir newDir; cd newDir;
python3 -m venv venv
. venv/bin/activate
pip install -U pyrogram
pip install -U telethon

bingo

To get outta venv just type deactivate
hope this works for you.