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The Python Software Foundation is a non-profit corporation. Active 5 months ago. BytesIO for text and data respectively. CGI Scripting and Alternatives. Instead, import the io module and use io. Another difference from the StringIO module is that calling StringIO with a string parameter creates a read-only object. Python Library and Extension Modules.

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Python: Using StringIO and BytesIO for managing data as file object

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The two modules are almost identical: In both cases, the initial file position starts at zero.

See the description cstrongio file objects for operations section File Objects. StringIO — Read and write strings as files 7. For standard strings, see str and unicode. Last updated on Jan 01, This is a general issue when migrating to 3.

Returns the current data contents of fl as a string. Extending and Embedding Classic Python. You may inherit from this class to create your own customized file-like objects, overriding the methods that you need to specialize. Unlike an object created without a string parameter, it does not have write methods.

Free the memory buffer. You can implement file-like objects by writing Python classes that supply the methods you need. Objects created by module cStringIOon the other hand, are instances of a special-purpose type, not of a class. Each module supplies a factory function named StringIO that creates a file-like object fl. Sign up using Email and Password. Enter search terms or a module, class or function name. Network and Web Cstdingio. You should not install emailyou should only import email as it's part of the Python standard library.

Furthermore, cStringIO does not support Unicode. Am I supposed to hack into some code and make changes for it to install? Getting Started with Python. There is a C API to the module as well; refer to the module source for more information.

IO (Jython API documentation)

Creates and returns an in-memory file-like object flwith all methods and attributes of a built-in file object. See the note above for information about mixing Unicode and 8-bit strings; such mixing can cause this method to raise UnicodeError.

Paolo 11k 16 16 gold badges 69 69 silver badges bronze badges. File and Text Operations. CGI Scripting and Alternatives. Strings and Regular Expressions.

Instead, import the io module and use io.

The cStringIO module

This module implements a file-like class, StringIOthat reads and writes a string buffer also known as memory files. Use the original StringIO module in those cases.

Performance is much better when you can use cStringIObut inheritance is not feasible. I should not have tried to install "email" it since it is available as a module.