In this example, you importedbest_practicesand shortened the name tobpfor this code. The import process caused the Python interpreter to execute all of the lines of code in thebest_practices.pyfile, so the outpu
# 比如python python接收命令行参数.py china -f 111 -t ---f_long="dadadadadadsa" # 这里sys.argv[1:]一开始是“china”,不是-或--开头的,那么opts就会完全为空 # 从第一个不符合合法opts格式的参数开始,都会变成args的内容 # 总是opts在前,args在后,顺序不能颠倒 print(sys.argv[0]) #sys.argv...
Python includes the special variable called __name__ that contains the scope of the code being executed as a string. __main__ is the name of the top-level scope in which top-level code executes. For example, the scope of the code executed in the interpreter shell will be __main__,...
Learn how to use Python's if __name__ == "__main__" idiom to control code execution. Discover its purpose, mechanics, best practices, and when to use or avoid it. This tutorial explores its role in managing script behavior and module imports for clean an
Theif __name__ == "__main__": ...trick exists in Python so that our Python files can act as either reusable modules, or as standalone programs. As a toy example, let's say that we have two files: mumak:~ dyoo$ cat mymath.py ...
然后右键单击该文件并选择Run 'pytest in <file name>'（例如：Run 'pytest in test_example.py'）...
root@team:~/python# ./test_name_main.py In caller,Call square from my_square ,square(8) 64 my_square module be imported,my_square module name = my_square module name = __main__ 1. 2. 3. 4. 通过运行结果我们可以看到在my_square.py文件中的if判断条件不成立,所以print "my math module...
README.md run_cpp_examples.sh run_distributed_examples.sh run_python_examples.sh runtime.txt utils.sh Basic MNIST Example pip install -r requirements.txt python main.py#CUDA_VISIBLE_DEVICES=2 python main.py # to specify GPU id to ex. 2...
When the Python interpreter reads a source file, it executes all of the code found in it. Before executing the code, it will define a few special variables. For example, if the Python interpreter is running that module (the source file) as the main program, it sets the special__name__...
We ran our module or the source file as the main program in the above code snippet. The Python interpreter will assign the hard-coded string "__main__" to the __name__ variable in the conditional if statement. Example 2: Here, we will use the condition if__name__== "__main__"...