How Can I Solve UnicodeEncodeError When Printing Webpage Responses in Python 3.3?

Unicode Encode Error with 'charmap' Codec

When attempting to print the response from a webpage accessed via the POST method in Python 3.3, it's possible to encounter a UnicodeEncodeError in the Windows console. This occurs because the console's default code page, CP-850, does not support certain Unicode characters, such as the em-dash (U 2014).

Solutions for Robust Encoding

To prevent this error and ensure robust encoding regardless of the output interface encoding, consider the following solutions:

1. Change Output Encoding: Modify the encoding settings to output UTF-8 consistently. Refer to resources like "Setting the Correct Encoding When Piping Stdout in Python."
2. Target Charset Awareness: Utilize a custom print function that encodes output based on the target charset. This enables seamless replacement of print with the custom function where necessary.

3. Global Encoding Reset: Reset the output encoding globally at the program's start. This ensures that any subsequent output will be correctly encoded, regardless of the default console settings. For Python 2 and Python 3, refer to the code snippets provided below:

   Python 2:

   if sys.stdout.encoding != 'cp850':
       sys.stdout = codecs.getwriter('cp850')(sys.stdout, 'strict')
   if sys.stderr.encoding != 'cp850':
       sys.stderr = codecs.getwriter('cp850')(sys.stderr, 'strict')

   Python 3:

   if sys.stdout.encoding != 'cp850':
       sys.stdout = codecs.getwriter('cp850')(sys.stdout.buffer, 'strict')
   if sys.stderr.encoding != 'cp850':
       sys.stderr = codecs.getwriter('cp850')(sys.stderr.buffer, 'strict')

By employing these strategies, you can effectively prevent the Unicode Encode Error and ensure that your code remains robust and adaptable to various output encoding scenarios.

The above is the detailed content of How Can I Solve UnicodeEncodeError When Printing Webpage Responses in Python 3.3?. For more information, please follow other related articles on the PHP Chinese website!