install pymysql

[Brahmamkolli]

Defaulting to user installation because normal site-packages is not writeable
Collecting pymysql
Downloading pymysql-1.1.2-py3-none-any.whl.metadata (4.3 kB)
Downloading pymysql-1.1.2-py3-none-any.whl (45 kB)
Installing collected packages: pymysql
Successfully installed pymysql-1.1.2
Note: you may need to restart the kernel to use updated packages.
ERROR: Error while checking for conflicts. Please file an issue on pip's issue tracker: https://github.com/pypa/pip/issues/new
Traceback (most recent call last):
File "C:\ProgramData\anaconda3\Lib\site-packages\pip_internal\commands\install.py", line 588, in _determine_conflicts
return check_install_conflicts(to_install)
File "C:\ProgramData\anaconda3\Lib\site-packages\pip_internal\operations\check.py", line 111, in check_install_conflicts
package_set, _ = create_package_set_from_installed()
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^
File "C:\ProgramData\anaconda3\Lib\site-packages\pip_internal\operations\check.py", line 53, in create_package_set_from_installed
package_set[name] = PackageDetails(dist.version, dependencies)
^^^^^^^^^^^^
File "C:\ProgramData\anaconda3\Lib\site-packages\pip_internal\metadata\importlib_dists.py", line 170, in version
return parse_version(self._dist.version)
File "C:\ProgramData\anaconda3\Lib\site-packages\pip_vendor\packaging\version.py", line 56, in parse
return Version(version)
File "C:\ProgramData\anaconda3\Lib\site-packages\pip_vendor\packaging\version.py", line 200, in init
match = self._regex.search(version)
TypeError: expected string or bytes-like object, got 'NoneType'

[notatallshaw]

If you do pip list you should see a package with a version that is empty or none. That's what causes pip to fail.

You can either:

• Uninstall the package using conda or pip
• Manage your environment with conda only (that's how the base Anaconda environment is designed)
• Create a new conda or virtual environment and install packages into that using the latest version of pip