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python: add alias to run the proper IPython based on virtualenv

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Current state: a user invokes `ipython` and is provided with the IPython
instance regarding the `$PATH`.

Proposed state: a user invokes `ipython` (which is a new alias in the
*python plugin*) and is provided with the proper IPython instance regarding
the currently activated virtualenv.

Example: the user's default Python is 2.7 with installed IPython 2.7. User
activates Python 3.5 virtualenv where he installs IPython 3.5. After
activating the environment, one expects `ipython` to run the version 3.5,
which does not happen by default. Instead, IPython 2.7 is used, which in
counter-intuitive and often causes problem.

Closes #5797
This commit is contained in:
Petr Bělohlávek 2017-01-20 11:05:01 +01:00 committed by Marc Cornellà
parent bccfe1389c
commit 6b54302b90
2 changed files with 3 additions and 0 deletions
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1
plugins/python/README.md
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@ -14,3 +14,4 @@ plugins=(... python)
| `pyfind` | Finds .py files recursively in the current directory | | `pyfind` | Finds .py files recursively in the current directory |
| `pyclean [dirs]` | Deletes byte-code and cache files from a list of directories or the current one | | `pyclean [dirs]` | Deletes byte-code and cache files from a list of directories or the current one |
| `pygrep <text>` | Looks for `text` in .py files | | `pygrep <text>` | Looks for `text` in .py files |
| `ipython` | Runs the appropriate `ipython` version according to the activated virtualenv |

2
plugins/python/python.plugin.zsh
View file

@ -14,3 +14,5 @@ function pyclean() {
# Grep among .py files # Grep among .py files
alias pygrep='grep -r --include="*.py"' alias pygrep='grep -r --include="*.py"'
# Run proper IPython regarding current virtualenv (if any)
alias ipython="python -c 'import IPython; IPython.terminal.ipapp.launch_new_instance()'"