How to Properly Write a Pandas DataFrame to a CSV File with Unicode Characters?

Writing a pandas DataFrame to CSV file

When attempting to write a pandas DataFrame with unicode characters to a CSV file using the to_csv method, the following error may arise:

UnicodeEncodeError: 'ascii' codec can't encode character u'u03b1' in position 20: ordinal not in range(128)

To resolve this issue, specify the encoding when calling the to_csv method using the encoding argument. For example, to use UTF-8 encoding:

df.to_csv('out.csv', encoding='utf-8')

Additionally, to write to a tab-delimited file, use the sep argument:

df.to_csv('out.csv', sep='\t')

For further customization, you can also remove the index and add a header:

df.to_csv('out.csv', sep='\t', encoding='utf-8', index=False, header=True)

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