pipenv requires python 3.7 but installed version is 3.8 and won't install

Question

I know a little of Python and more than a year ago I wrote a small script, using pipenv to manage the dependencies.

The old platform was Windows 7, the current platform is Windows 10.

At that time I probably had Python 3.7 installed, now I have 3.8.3 but running:

pipenv install

Complained that:

Warning: Python 3.7 was not found on your system…
Neither 'pyenv' nor 'asdf' could be found to install Python.
You can specify specific versions of Python with:
$ pipenv --python path\to\python

This is the Pipfile

[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[packages]
python-ldap = {path = "./dependencies/python_ldap-3.1.0-cp37-cp37m-win_amd64.whl"}
requests = "~=2.0"
mysqlclient = "~=1.0"

[dev-packages]

[requires]
python_version = "3.7"

I manually edited that last line to allow 3.8, but how do I properly fix that?
I think 3.7 should be a minimum requirement — well, the script is so simple that I think even 3.0 should work.

Answer 1

I know a litte of Python and more that a year ago I wrote a small script, using pipenv to manage the dependencies.

Old platform was Windows 7, current platform is Windows 10.

At that time I probably had Pyhton 3.7 installed, now I have 3.8.3 but running:

pipenv install

Complained that:

Warning: Python 3.7 was not found on your system…
Neither 'pyenv' nor 'asdf' could be found to install Python.
You can specify specific versions of Python with:
$ pipenv --python path\to\python

This is the Pipfile

[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[packages]
python-ldap = {path = "./dependencies/python_ldap-3.1.0-cp37-cp37m-win_amd64.whl"}
requests = "~=2.0"
mysqlclient = "~=1.0"

[dev-packages]

[requires]
python_version = "3.7"

I manually edited that last line to allow 3.8, but how do I properly fix that?
I think 3.7 should be a minimum requirement — well, the script is so simple that I think even 3.0 should work.

Answer 2

I know a litte of Python and more that a year ago I wrote a small script, using pipenv to manage the dependencies.

Old platform was Windows 7, current platform is Windows 10.

At that time I probably had Pyhton 3.7 installed, now I have 3.8.3 but running:

pipenv install

Complained that:

Warning: Python 3.7 was not found on your system…
Neither 'pyenv' nor 'asdf' could be found to install Python.
You can specify specific versions of Python with:
$ pipenv --python path\to\python

This is the Pipfile

[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[packages]
python-ldap = {path = "./dependencies/python_ldap-3.1.0-cp37-cp37m-win_amd64.whl"}
requests = "~=2.0"
mysqlclient = "~=1.0"

[dev-packages]

[requires]
python_version = "3.7"

I manually edited that last line to allow 3.8, but how do I properly fix that?
I think 3.7 should be a minimum requirement — well, the script is so simple that I think even 3.0 should work.

Answer 3

I know a litte of Python and more that a year ago I wrote a small script, using pipenv to manage the dependencies.

Old platform was Windows 7, current platform is Windows 10.

At that time I probably had Pyhton 3.7 installed, now I have 3.8.3 but running:

pipenv install

Complained that:

Warning: Python 3.7 was not found on your system…
Neither 'pyenv' nor 'asdf' could be found to install Python.
You can specify specific versions of Python with:
$ pipenv --python path\to\python

This is the Pipfile

[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[packages]
python-ldap = {path = "./dependencies/python_ldap-3.1.0-cp37-cp37m-win_amd64.whl"}
requests = "~=2.0"
mysqlclient = "~=1.0"

[dev-packages]

[requires]
python_version = "3.7"

I manually edited that last line to allow 3.8, but how do I properly fix that?
I think 3.7 should be a minimum requirement — well, the script is so simple that I think even 3.0 should work.

Answer 4

I know a litte of Python and more that a year ago I wrote a small script, using pipenv to manage the dependencies.

Old platform was Windows 7, current platform is Windows 10.

At that time I probably had Pyhton 3.7 installed, now I have 3.8.3 but running:

pipenv install

Complained that:

Warning: Python 3.7 was not found on your system…
Neither 'pyenv' nor 'asdf' could be found to install Python.
You can specify specific versions of Python with:
$ pipenv --python path\to\python

This is the Pipfile

[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[packages]
python-ldap = {path = "./dependencies/python_ldap-3.1.0-cp37-cp37m-win_amd64.whl"}
requests = "~=2.0"
mysqlclient = "~=1.0"

[dev-packages]

[requires]
python_version = "3.7"

I manually edited that last line to allow 3.8, but how do I properly fix that?
I think 3.7 should be a minimum requirement — well, the script is so simple that I think even 3.0 should work.

Answer 5

I know a litte of Python and more that a year ago I wrote a small script, using pipenv to manage the dependencies.

Old platform was Windows 7, current platform is Windows 10.

At that time I probably had Pyhton 3.7 installed, now I have 3.8.3 but running:

pipenv install

Complained that:

Warning: Python 3.7 was not found on your system…
Neither 'pyenv' nor 'asdf' could be found to install Python.
You can specify specific versions of Python with:
$ pipenv --python path\to\python

This is the Pipfile

[[source]]
url = "https://pypi.org/simple"
verify_ssl = true
name = "pypi"

[packages]
python-ldap = {path = "./dependencies/python_ldap-3.1.0-cp37-cp37m-win_amd64.whl"}
requests = "~=2.0"
mysqlclient = "~=1.0"

[dev-packages]

[requires]
python_version = "3.7"

I manually edited that last line to allow 3.8, but how do I properly fix that?
I think 3.7 should be a minimum requirement — well, the script is so simple that I think even 3.0 should work.

Answer 6

If your python command is Python 2.x, but you have a python3 command which runs Python 3.x, then you might just need to use the --python option to tell pipenv to use it:

$ pipenv install
Warning: Python >= 3.5 was not found on your system...
Neither 'pyenv' nor 'asdf' could be found to install Python.
You can specify specific versions of Python with:
$ pipenv --python path/to/python

$ pipenv --python `which python3` install
Creating a virtualenv for this project...

Answer 7

Install Relevant version

How to check Python Version

cmd any directory>Python -v

In My case they need Python 3.8.2 But i have Python 3.8.0 version installed Due this i could not able over come this error

Once i install exact version i can able to run command

Answer 8

I had a similar problem and it was solved by deleting the pipfile. The pipfile path is the path where you enter the pipenv install command in the terminal.

Answer 9

I meet the same problem when I move my old project to a new Laptop.

Warning: Python 3.7 was not found on your system...
Neither 'pyenv' nor 'asdf' could be found to install Python.
You can specify specific versions of Python with:
$ pipenv --python path/to/python

My way to solve the problem is simply delete the old Pipfile and input pipenv shell in the terminal. Then it will build a new Pipfile and match your python as it should be.

Answer 10

You can install pyenv simply with

curl https://pyenv.run | bash

then, when you push new changes with amplify CLI, it will ask if you wish them to install the specific Python version with Pyenv. Confirm, and problem solved in a proper way:)