STM Makefile python2: Command not found about micropython HOT 4 CLOSED

Yep, this needs to be fixed.

If you have a python2.7 binary, then surely you have a python2 symlink to it? Or maybe not, since such a naming scheme is only needed when you also have python3 living on your system... But then you would have python3 if you want the tests/ to run.

from micropython.

What about moving all the Python2 dependencies to Python3? It would make
more sense, being this the future version and also being MicroPython based
on CPython 3.3...

2014/1/2 Damien George [email protected]

Yep, this needs to be fixed.

If you have a python2.7 binary, then surely you have a python2 symlink to
it? Or maybe not, since such a naming scheme is only needed when you also
have python3 living on your system... But then you would have python3 if
you want the tests/ to run.

—
Reply to this email directly or view it on GitHubhttps://github.com//issues/33#issuecomment-31477971
.

"Si quieres viajar alrededor del mundo y ser invitado a hablar en un monton
de sitios diferentes, simplemente escribe un sistema operativo Unix."
– Linus Tordvals, creador del sistema operativo Linux

from micropython.

If you have a python2.7 binary, then surely you have a python2 symlink to it? Or maybe not, since such a naming scheme is only needed when you also have python3 living on your system...

Having a symlink "python2" pointing to the "best" available python 2.x version is a common idiom, which is usually handled by a python package or distro package manager. If some system lacks it, the good strategy to resolve it is: 1) Create it manually; 2) Report bug to the particular distro/package provider which don't follow the best practices.

Damien, while we're on the subject of python versions, tests/basics/run-tests requires not less than python 3.3, it fails at least one test with 3.2. 3.2 is still default on many systems, and tests/bytecode/run-tests already expilcitly uses python3.3. So can you apply following patch:

--- a/tests/basics/run-tests
+++ b/tests/basics/run-tests
@@ -1,7 +1,8 @@
 #!/usr/bin/env bash

 RM="/bin/rm -f"
-CPYTHON3=python3
+# Note: At least python 3.3 is required
+CPYTHON3=python3.3
 MP_PY=../../unix/py

 numtests=0

I'd submit pull request, but I kinda hate all the merge commits spaghetti we get with such small pull requests (that's github's fault, they should get from under the rock and support fast-forward/rebase merges).

from micropython.

Actually on my old Ubuntu 11.04 machine I have Python 3 installed too but still no python2 link, it exists along side Python 2.x and there's a python symlink which points to python2.7 to avoid compatibility issues.

However, that's not the issue, I agree there's a dependency on Python 2, if someone has just Python 3 installed, the script won't work because it uses Python 2 syntax...

so I think it needs to be changed either way, so I made some minor changes to the script to use Python 3 syntax, but it's still remains compatible with Python 2, I tested it with python2.6 and python3.2 and confirmed with diff the dfu images are identical to the old one, now the Makefile can just call python which will work regardless of the python version installed. I will send a pull request.

from micropython.