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Why Does IPython Notebook on macOS Throw a Locale Error After Anaconda Installation, and How Can I Fix It?

Susan Sarandon
Release: 2024-12-26 00:39:09
Original
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Why Does IPython Notebook on macOS Throw a Locale Error After Anaconda Installation, and How Can I Fix It?

IPython Notebook Locale Error

Upon installing Anaconda Python 64-bit for Mac OSX, users may encounter a ValueError when utilizing the IPython Notebook.

Problem Manifestation:

Attempting to launch IPython Notebook via:

ipython notebook
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Results in the following error:

ValueError: unknown locale: UTF-8
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Locale Considerations:

Executing the locale command in the terminal indicates inconsistency between the default locale and the UTF-8 encoding.

LANG=
LC_COLLATE="C"
LC_CTYPE="UTF-8"
LC_MESSAGES="C"
LC_MONETARY="C"
LC_NUMERIC="C"
LC_TIME="C"
LC_ALL=
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Solution:

To rectify the issue, adjust the locale settings in .bash_profile. For instance, to set English (US) locale, add:

export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8
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Modifying Locales:

Depending on the desired locale, users can modify the values in the above lines. To determine the current settings, use:

locale
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To list available settings:

locale -a
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French (Swiss) locale, for example, would require:

export LC_ALL=fr_CH.UTF-8
export LANG=fr_CH.UTF-8
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After saving the changes and reloading the profile:

source ~/.bash_profile
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IPython Notebook can be launched successfully without the locale error.

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