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Update README about usage with multiple versions (#92)
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Yamashita Yuu
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1 changed files with 88 additions and 33 deletions
121
README.md
121
README.md
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@ -299,21 +299,38 @@ file named `.pyenv-version`. For backwards compatibility, pyenv will
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read a local version specified in an `.pyenv-version` file, but a
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`.python-version` file in the same directory will take precedence.
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**pyenv feature**
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#### pyenv local (advanced)
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You can specify multiple versions as local Python. Commands
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within these Python versions are searched by specified order.
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You can specify multiple versions as local Python at once.
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Let's say if you have two versions of 2.7.6 and 3.3.3. If you prefer 2.7.6 over 3.3.3,
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$ pyenv local 2.7.6 3.3.3
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$ pyenv local
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2.7.6
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3.3.3
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$ pyenv which python2.7
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/home/yyuu/.pyenv/versions/2.7.6/bin/python2.7
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$ pyenv which python3.3
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/home/yyuu/.pyenv/versions/3.3.3/bin/python3.3
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$ pyenv which python
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/home/yyuu/.pyenv/versions/2.7.6/bin/python
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$ pyenv versions
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system
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* 2.7.6 (set by /Users/yyuu/path/to/project/.python-version)
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* 3.3.3 (set by /Users/yyuu/path/to/project/.python-version)
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$ python --version
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Python 2.7.6
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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or, if you prefer 3.3.3 over 2.7.6,
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$ pyenv local 3.3.3 2.7.6
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$ pyenv versions
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system
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* 2.7.6 (set by /Users/yyuu/path/to/project/.python-version)
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* 3.3.3 (set by /Users/yyuu/path/to/project/.python-version)
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venv27
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$ python --version
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Python 3.3.3
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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### pyenv global
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@ -330,21 +347,38 @@ The special version name `system` tells pyenv to use the system Python
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When run without a version number, `pyenv global` reports the
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currently configured global version.
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**pyenv feature**
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#### pyenv global (advanced)
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You can specify multiple versions as global Python. Commands
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within these Python versions are searched by specified order.
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You can specify multiple versions as global Python at once.
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Let's say if you have two versions of 2.7.6 and 3.3.3. If you prefer 2.7.6 over 3.3.3,
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$ pyenv global 2.7.6 3.3.3
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$ pyenv global
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2.7.6
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3.3.3
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$ pyenv which python2.7
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/home/yyuu/.pyenv/versions/2.7.6/bin/python2.7
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$ pyenv which python3.3
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/home/yyuu/.pyenv/versions/3.3.3/bin/python3.3
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$ pyenv which python
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/home/yyuu/.pyenv/versions/2.7.6/bin/python
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$ pyenv versions
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system
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* 2.7.6 (set by /Users/yyuu/.pyenv/version)
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* 3.3.3 (set by /Users/yyuu/.pyenv/version)
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$ python --version
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Python 2.7.6
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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or, if you prefer 3.3.3 over 2.7.6,
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$ pyenv global 3.3.3 2.7.6
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$ pyenv versions
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system
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* 2.7.6 (set by /Users/yyuu/.pyenv/version)
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* 3.3.3 (set by /Users/yyuu/.pyenv/version)
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venv27
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$ python --version
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Python 3.3.3
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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### pyenv shell
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@ -366,17 +400,38 @@ prefer not to use shell integration, you may simply set the
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$ export PYENV_VERSION=pypy-2.2.1
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**pyenv feature**
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#### pyenv shell (advanced)
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You can specify multiple versions via `PYENV_VERSION`
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environment variable in your shell.
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You can specify multiple versions via `PYENV_VERSION` at once.
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$ pyenv shell pypy-2.2.1 2.7.6
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$ echo $PYENV_VERSION
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pypy-2.2.1:2.7.6
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$ pyenv version
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pypy-2.2.1 (set by PYENV_VERSION environment variable)
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2.7.6 (set by PYENV_VERSION environment variable)
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Let's say if you have two versions of 2.7.6 and 3.3.3. If you prefer 2.7.6 over 3.3.3,
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$ pyenv shell 2.7.6 3.3.3
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$ pyenv versions
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system
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* 2.7.6 (set by PYENV_VERSION environment variable)
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* 3.3.3 (set by PYENV_VERSION environment variable)
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$ python --version
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Python 2.7.6
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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or, if you prefer 3.3.3 over 2.7.6,
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$ pyenv shell 3.3.3 2.7.6
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$ pyenv versions
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system
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* 2.7.6 (set by PYENV_VERSION environment variable)
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* 3.3.3 (set by PYENV_VERSION environment variable)
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venv27
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$ python --version
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Python 3.3.3
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$ python2.7 --version
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Python 2.7.6
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$ python3.3 --version
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Python 3.3.3
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### pyenv versions
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