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Ubuntu 14.04 LTSでPython 3.4のpyvenvが失敗する

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Python3.4のvenvをつくろうとすると・・・

$ pyvenv-3.4 <directory>
Error: Command '['<directory>/bin/python3.4', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1

と、エラーがでてしまいます。

直接コマンドを実行すると以下のようなエラーになるので、ensurepipモジュールがない、と。

<directory>/bin/python3.4: No module named ensurepip

仕方がないので、--without-pipオプションを付けてvenvを作ってから、手動でpipをインストールして回避してます。

$ pyvenv-3.4 --without-pip <directory>
$ source <directory>/bin/activate

# setuptoolsのインストール
$ curl -O https://pypi.python.org/packages/source/s/setuptools/setuptools-3.4.4.tar.gz
$ tar xvfz setuptools-3.4.4.tar.gz
$ cd setuptools-3.4.4/
$ python setup.py install

# pipのインストール
$ curl -O https://pypi.python.org/packages/source/p/pip/pip-1.5.4.tar.gz
$ tar xvfz pip-1.5.4.tar.gz
$ cd pip-1.5.4/
$ python setup.py install

venvの再構築はそんなに手間じゃないのでとりあえず上記で回避しつつ修正待ち。

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