How to Solve Unicode Errors and Create Tab-Delimited Files When Exporting Pandas DataFrames to CSV?

Troubleshooting Unicode Encoding Errors When Writing Pandas DataFrame to CSV

When exporting Pandas dataframes to CSV files, you may encounter UnicodeEncodeError if your data contains non-ASCII characters. Let's address both the error and an additional question on writing tab-delimited files.

Unicode Encoding Error

To write to a CSV file with Unicode characters, specify an encoding compatible with your data. Use the encoding argument in to_csv():

df.to_csv(file_name, sep='\t', encoding='utf-8')

For most Unicode characters, UTF-8 is sufficient.

Writing to Tab-Delimited File

Pandas does not have a dedicated "to-tab" method. However, you can manually delimit by tab using the sep argument in to_csv():

df.to_csv(file_name, sep='\t', encoding='utf-8')

Additional Options

In addition to specifying the encoding and delimiter, you may also want to disable the index and add a header:

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

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