Get Free GPT4o from [ Ссылка ]
converting python code to cython can significantly speed up your python code, especially if it involves loops and numerical computations. cython is a superset of python that allows you to add static types to your code, which can lead to performance improvements. in this tutorial, we will go through the steps to convert a simple python function to cython and demonstrate how to compile it for improved performance.

### step 1: install cython

before you start, ensure you have cython installed. you can install it via pip:



### step 2: create a simple python example

let's start with a simple python function that calculates the sum of squares of a list of numbers:



### step 3: convert python code to cython

now, let's convert the above python function to cython. create a new file called `sum_of_squares.pyx`:



here, we have added type declarations for the parameters and variables:
- `int n` specifies that `n` is an integer.
- `cdef int total` and `cdef int i` declare variables with c-style integer types.

### step 4: create a setup file

to compile the cython code, we need a setup script. create a file named `setup.py`:



### step 5: compile the cython code

now, open a terminal and run the following command to compile the cython code:



this command compiles the `sum_of_squares.pyx` file and creates a shared object file (e.g., `sum_of_squares.cpython-version-platform.so`) that can be imported in python.

### step 6: test performance

now we can test the performance of both the original python function and the cython function. create a new file named `test_performance.py`:



### step 7: run the performance test

run the performance test script:



you should see that the cython implementation runs significantly faster than the pure python version.

### conclusion

you've successfully converted a python function to cython and compiled it for performance. here are some key takeaways:

- adding static type declarations can significantly improve performance.
- c ...

#python convert float to int
#python convert dict to json
#python convert set to list
#python convert string to json
#python convert list to string

python convert float to int
python convert dict to json
python convert set to list
python convert string to json
python convert list to string
python convert bytes to string
python convert string to datetime
python convert string to dictionary
python convert string to float
python convert string to int
python cython install
python cython compile
python cython setup.py
python cython_sources
python cython tutorial
python cython github
python cython_bbox
python cython

свернуть