Python-ctype

27 posts

Python unittest - How to nicely mock a web crawler function?

Last Updated: 23 July 2025

Prerequisite: Python | Unit Test Objects PatchingUnit Testing is the first level of software testing where the smallest testable parts of the software are tested. This is ...read more

Python | Accepting Script Input

Last Updated: 12 June 2019

A lot of people use Python as a replacement for shell scripts, using it to automate common system tasks, such as manipulating files, configuring systems, and so forth. Thi...read more

Python | Unit Test Objects Patching | Set-2

Last Updated: 12 June 2019

MagicMock instances that are normally used as replacement values are meant to mimic callables and instances. They record information about usage and allow to make assertio...read more

Python

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Python | Unit Test Objects Patching | Set-1

Last Updated: 12 June 2019

The problem is writing unit tests and need to apply patches to selected objects in order to make assertions about how they were used in the test (e.g., assertions about be...read more

Python

Python-ctype

Python | Passing Filenames to Extension in C

Last Updated: 07 June 2019

Filename has to be encoded according to the system’s expected filename encoding before passing filenames to C library functions.Code #1 : To write an extension function th...read more

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Python | Consuming an Iterable and Diagnosing faults in C

Last Updated: 07 June 2019

The article aims to write C extension code that consumes items from any iterable object such as a list, tuple, file, or generator.Code #1 : C extension function that shows...read more

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Reading Python File-Like Objects from C | Python

Last Updated: 07 June 2019

Writing C extension code that consumes data from any Python file-like object (e.g., normal files, StringIO objects, etc.). read() method has to be repeatedly invoke to con...read more

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Python | C Strings of Doubtful Encoding | Set-2

Last Updated: 07 June 2019

String handling in extension modules is a problem. C strings in extensions might not follow the strict Unicode encoding/decoding rules that Python normally expects. Thus, ...read more

Python

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Python | C Strings of Doubtful Encoding | Set-1

Last Updated: 07 June 2019

One can convert strings between C and Python vice-versa but the C encoding is of a doubtful or unknown nature. Let's suppose that a given C data is supposed to be UTF-8, b...read more

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Turning a Function Pointer to Callable

Last Updated: 02 April 2019

Well, the memory address of a compiled function is obtained but how to turn it to Python callable that can be used as an extension. The answer to this the use of ctypes mo...read more

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C strings conversion to Python

Last Updated: 02 April 2019

For C strings represented as a pair char *, int, it is to decide whether or not - the string presented as a raw byte string or as a Unicode string. Byte objects can be bu...read more

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Unicode Strings Passing to C Libraries

Last Updated: 02 April 2019

Given that one wants to write an extension module that needs to pass a Python string to C library function. So, the question arises to properly handle Unicode. So, one of ...read more

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Passing NULL-Terminated Strings to C Libraries

Last Updated: 29 March 2019

If one wants an extension module that needs to pass a NULL-terminated string to a C library. Let's see how to do it with Python's Unicode string implementation. C librarie...read more

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High-Performance Array Operations with Cython | Set 2

Last Updated: 11 July 2025

The resulting code in the first part works fast. In this article, we will compare the performance of the code with the clip() function that is present in the NumPy library...read more

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High-Performance Array Operations with Cython | Set 1

Last Updated: 29 March 2019

Although libraries like NumPy can perform high-performance array processing functions to operate on arrays. But Cython can also work really well. But how ? Code #1 : Cytho...read more

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