The solution of "No module named" "XXX" appears in Python

In the use of Wxpython, has been downloaded installed Wxpython (only the Python2 version of the Wxpython,python3 version is not), but in the import when there is "no module named" WX "" error prompted, There is the PIL image processing module,

The Python list matrix defines and uses the

In Python, unlike C, the C language uses any variable to define its type (int a = 1), and Python can directly assign a value without defining (A = 1). However, to use a matrix, it is also defined when you assign a value directly. (Do not know if you

Mac Python Path Summary __python

Mac brought python2.6 and python2.7, their own this time and installed the python3.6 (already configured environment variables), all of a sudden by the three version of the Python path dizzy. The path to the three versions is as follows: The path to

Python expect module Pexpect simple application

Pexpect is an automated Python module that can be used for automatic interaction in SSH, FTP, passwd, Telnet, and other command lines. The official website is http://www.noah.org/. With it, you can implement a similar expect operation. For example,

Python Learning series of multiple threads

I. Multi-threaded LEARNINGPython provides two modules to implement multithreaded thread and threading, and thread has some drawbacks that have been made up in threading. So we can learn threading directly. Create thread: t=threading. Thread (target=

Simple Python crawler program (crawling Baidu post paste posts)

Because just started to learn python, the level is limited, for reference only, if wrong, welcome everyone to point out corrections. 1.URL Address Analysis I choose a Baidu post posted URL is http://tieba.baidu.com/p/4739169817 (this is a Qin moon

Python in Array.sum (axis=?) Use of

According to the results of the operation in the code, mainly by the following: 1. SUM (): The result of adding each element in an array 2. Axis corresponds to the addition of the dimensions. Like what: 1, when the axis=0, to drink is the first

Python gets the current file name in two ways: __file__, Sys.argv[0]__python

Python Gets the current file name through __file__ or sys.argv[0], as an example of the test.py file below. test.py: #-*-Coding:utf-8-*- # test.py sys os # Absolute path print (__file__) print ( Sys.argv[0]) # file name print

Python code to find all the Narcissus number __python

The number of daffodils is a 3-bit positive integer in which the sum of the 3 powers of the number on each bit is equal to itself. (For example: 1^3 + 5^3+ 3^3 = 153) The following is a code to find all the number of daffodils: method One: >>> >>

Python-Scan LAN available ports __python

do_scan_port.py #!/usr/bin/env python #-*-CODING:GBK-*- #-*-coding:utf_8-*- import socket from do_valid_ip import * # SCAN Specifies IP port def test_port (dst,port): os.system (' title ' +str (port)) Cli_sock = socket.socket (socket .

No module named "Apt_pkg" after replacing the python version

$ sudo apt-get remove--purge python-apt $ sudo apt-get install python-apt-f $ sudo find/-name "Apt_pkg.cpython -35m-x86_64-linux-gnu.so " $ cd/usr/lib/python3/dist-packages/ Background: System: Ubuntu17 Python version: The default version of the

Python.pypcap/pcapy & DPKT--Python Grab bag & Unpack (python2.x) __python

Under Windows: WinPcap download Http://www.pc6.com/softview/SoftView_17547.html#download Pypcap-1.1.3-py2.7-win32.egg http://download.csdn.net/download/lone_wolf_pqj/8855665 How to use: After installing WinPcap, execute: Easy_install Pypcap-1.1

Using Python as a tool -2__python

Before using Python to do the Chinese extraction tool, now do a copy of the file of the gadget, compare records as follows: Requirements Description: require a fixed folder under the continuous generation of some fixed file name files, for the main

Python numpy Library Learning common functions (matrix operations) __ function

Matrix summation, maximum, minimum, average, log, open root, Square, decimal up Import NumPy as np a = Np.arange (10,100,5) print ( a) print (' Vector size: ', a.size) A36 = A.reshape (3,6) Print (A36) print (' -------------------') print (' Sum: ',

Python, palindrome statement judgment

The Python program is as follows: Import string #测试字符串: "aman,aplan,acanal--panama!" "Phoenix Falls Wu Feng ' def Reverse" (text): #反向打印出字符串 return text[::-1] def is_palindrome (text): # Convert uppercase letters to lowercase

Python Network Data Acquisition--beautifulsoup__python

When Michelangelo was asked how to complete his masterpiece, "David", he had a famous answer: "It's easy to just use a hammer to knock off a rock that doesn't look like David." ”The same is true of reptiles, and there are many tricks that can help

Python Learning (2)--string and digital conversion __python

Convert string to number Import string ts = ' 123 ' num = string.atoi (TS) int (x [, Base])         converts x to an integer     long (x [, Base])         convert x to a long integer     Float (x)               convert x to a floating-point

Use Python to make a simple graphical interface

Here use Tkinter Library, there are a lot of other graphics library, but I think tkinter relatively simple, I learned a few days, but a bit of the introduction, some basic ideas, basic functions of the meaning is also roughly understood, so tkinter

Python to achieve the number of daffodils

Title: Print out all the "Narcissus number", the so-called "Narcissus number" refers to a three-digit number, its members of the digital cubic and equal to the number itself. For example: 153 is a "narcissus number", because the 153=1 three times

Automatically add a few lines of common code to your head when you create a new sublime Python code file

1th Step: Install Fileheader, and then Preferences->packages settings->file header->settings User Fileheader.sublime-settings read as follows: {"Default":{"Author": "Chi Yu","Email": "Chkvta9523@163.com"}} 2nd Step: Preferences->browse

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