I don’t know if you have encountered such a situation, that is, sometimes you want to transfer some files from the computer to your mobile phone or pad. You either need to connect to the computer with a data cable, sometimes you need to install various drivers to carry out data transmission, or you need …
How To Run One Python Command To Turn Your Computer Into A Web Server Read More »
Functions are well organized, reusable pieces of code that implement a single function. Function can improve the modularity of application and reuse of code. You already know that python provides many built-in functions, such as print(). But you can also create your own functions, which are called user-defined functions.
Magic commands are special commands used to control the notebook. They run in code units, starting with % or %%, the former controls a single line, the latter controls a unit. For example, to get the running time of the code, you can run %timeit, for code debugging you can run %pdb. You can run …
Python sys module is a standard built-in module which contains variables and methods related to Python interpreter. This article will introduce the sys module contained variables and methods to you with examples about how to use them. Before use them, you should first import sys module with command import sys.
The os.walk(top, topdown=True, onerror=None, followlinks=False) method is a very important and powerful method in python standard os module. It can help us to traverse the directory tree in a top-down or bottom-up recursive manner very conveniently and return a tuple (dir-path, dir-names, file-names) for each directory. Below is the returned tuple’s elements description. dir-path : …
In early python version, the os modules’s system or popen function is usually used to execute operating system commands. However, recently python gradually abandon these functions officially. It recommend to use the built-in subprocess module to execute operating system-related commands. This article will tell you how to use subprocess module and os module’s system, popen …
How To Run Shell Command And Get Output In Python Read More »
Python os module is a module in the python standard library for accessing operating system related functions. The os module provide a portable method of using operating system functions. Use the interface provided in python os module, cross platform access can be achieved. However, not all interfaces in the os module are universal used on …
Python time.time() and time.clock() method can be used to calculate program execution time and cpu time. However, most of the time, we just want to count the execution time of some code fragments or algorithms. At this time, it is more convenient to use the timeit module. timeit module is a python built-in module for …
Jupyter notebook is a web application program. It can be used to easily create and share program documents. It supports real-time code, mathematical equations, visualization and markdown. It’s purpose includes data cleaning and conversion, numerical simulation, statistical modeling, machine learning, etc. This article will tell you how to install and run it.
