[Eric] How can I install Eric6 in a virtual environment?

[Victoria]

2016-Jul-29

Update

OK: sorry, spending too much time on this.  Implemented changes below; Eric still launches with Py3.5 interpreter.

Run a script -- fails: lacking needed packages (e.g. tensorflow; see also dialog, below).

No obvious (i.e. facile) way to change as far as I can see ...

I also tried/started using PyCharm [JetBrains] yesterday and it indeed works like a 'charm,' asking for the interpreter, etc. via a popup.  Seems more 'intuitive,' depsite the plethora of config. settings.  Disclaimer: previously used JetBrains' IntelliJ Java IDE, that also performed brilliantly.

Not meant to discourage the Eric developers; must my thoughts/feedback.

Thanks anyway, V.  :-)

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From: Victoria ***
To: "Eric (Python IDE; Eric6) mail list" <eric at riverbankcomputing.com>
Subject: Re: [Eric] How can I install Eric6 in a virtual environment?

2016-Jul-29

Hi Detlev: Thank you for your answer. Resolved via:

    Settings menu >> Preferences >> Debugger >> Python >> Python Interpreter:

Was:

    /home/victoria/anaconda3/envs/py27/bin/python

So, I was getting (e.g.), in the Eric Python terminal:

>>> import tensorflow
    	ImportError: No module named tensorflow

BUT I wanted this (other) Py2.7 venv (that I use for TensorFlow):

    (tf-env)[victoria at victoria notebooks]$ which python
        /home/victoria/anaconda3/envs/tf-env/bin/python

    (tf-env)[victoria at victoria notebooks]$

So, per your suggestion below, I swapped those PATHS (above) and then reloaded the Eric Python2 terminal:

Eric terminal >> right-click [context menu] >> Start >> Python2

[Basically, reloads the Python kernel/interpreter.]

Now:

    >>> import tensorflow
    >>> import numpy
    >>> import theano
    >>> ...

Works! Q.E.D.  Thank you, appreciated!  :-)

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2016-Jul-29
From: Detlev <***>
To: eric at riverbankcomputing.com
Subject: Re: [Eric] How can I install Eric6 in a virtual environment?

Hello Victoria,

What in particular do you want to do? Run Eric from within a virtual environment, or run Eric and develop using a virtual environment? Both possibilities are given.

1. Just install eric with the python interpreter of the virtual environment, e.g.

    ~/pyenv/bin/python install.py

2. Just configure the Python interpreter to be used (in your case Python2) to be the one of the virtual environment (Configuration dialog, Debugger->Python page).

Detlev

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On Thursday 28 July 2016, 11:54:15 Victoria wrote:

Subject: How can I install Eric6 in a virtual environment?

Hello: I have an Anaconda virtual environment in which I would like to use Eric6, on an Arch Linux-based system.  The Python in that venv is Python 2.7.

I installed Eric6 within my venv (tf-env) using Arch Linux' pacman package manager, but when I start Eric6, it launches in Python 3.5.  In that (Eric's) Python terminal, I can

    right-click >> Start >> change the Python interpreter to either of Python2 or Python3.

However, I don't see my virtual environments (e.g. tf-env, in which I want to work).

That venv (tf-env) has Python packages that I use (numpy theano; tensorflow; ...), that are not available in Python {2|3} (hence, Eric).

Suggestions?

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(tf-env)[victoria at victoria anaconda3]$ which python
    /home/victoria/anaconda3/envs/tf-env/bin/python

(tf-env)[victoria at victoria anaconda3]$ python --version
    Python 2.7.12 :: Anaconda 4.1.1 (64-bit)

(tf-env)[victoria at victoria anaconda3]$ which eric6
    /usr/bin/eric6

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