Original title: A Byte of PythonAuthor: Swaroop, C. H.Translator: Shen JieyuanPublisher: UnknownAdvantages1. The explanation is very detailed, very basic, is suitable for the introduction, has also made the simple introduction to the compiler2. The explanation of the __name__ attribute is more detailed, while the other books do not talk about this piece of knowledge3. There is the knowledge of class, inheritance, for me without Java Foundation, the explanation is very popular, but this book is o
How many times have you been stuck in a situation where you have to change someone else's code? If you're part of a development team, you're more than you want to be in this situation. However, Python has a neat debugging feature (like most other languages), which is handy in this case. This is a quick tutorial and hopefully it will make your coding life easier.1. A messy procedure
For the purposes of this
? For example, hitting a (multiple) space before the print function or pressing the TAB key will cause an error when running the statement in Python-shell.>>> s = ' www.jeapedu.com ' >>> print swww.jeapedu.com>>> print s File "The reason for the 4th line error is that there is a tab or several spaces in front of the print function that causes the syntax to be out of compliance in the Shell and report an error.This article is from the "
monitoring status is required to be notified in advance through a health check. Zabbix as an operational monitoring evergreen tree, it is easy to monitor thousands of servers. This section explains the installation of Zabbix, the basic configuration item monitoring of the server. The 16th chapter of the course summaryReview the key knowledge of the course.: Baidu Network Disk downloadOriginal address: http://linyunbbs.com/thread-2186-1-1.htmlQuick Start Linux Play typical application video
Sequence common operations of notes in the basic python tutorial, and python Sequence
Index
All the elements in the sequence are numbered-starting from 0. When a negative index is used, Python starts counting from the right, that is, from the last element. The position number of the last element is-1. in addition, a
Obtain process information from Python and Ubuntu. Basic python tutorial
I want to know the memory usage of the process.
First, you must obtain the system memory information:
Def memory_stat ():
'''
Return the memory info
'''
Mem = {}
Stat = {}
F = open ('/proc/meminfo ')
Lines = f. readlines ()
For line in lines:
If len (line) Name = line. split (':') [0]
Var =
Python tutorial 10-Python anonymous Functions
When you pass in a function, you do not need to explicitly define the function. It is more convenient to directly pass in an anonymous function.
In Python, anonymous functions are provided with limited support. Take the map () function as an example. When f (x) = x * x is
The Python built-in (built-in) function is created with the running of the python interpreter. In Python programs, you can call these functions at any time without defining them. The most common built-in functions are: The Python built-in (built-in) functions are created with the running of the
Python PIL installation simple tutorial, pythonpil tutorial
Installing python PIL is a headache. If you want to use a graph program in python, you may just save an image from a binary stream (for example, using Scrapy to crawl a graph ), PIL will be used.This library, and th
Use the commands in the PDB module in Python to debug the Python code tutorial, pythonpdb
How many times have you had to change others' code? If you are a member of a development team, you may encounter more times than you want. However, Python has a neat debugging feature (like most other languages), which is very con
Detailed tutorial on regular expressions in Python, python Regular Expressions
1. Understand Regular Expressions
A regular expression is a logical formula for string operations. It uses predefined characters and combinations of these specific characters to form a "rule string ", this "rule string" is used to express a filtering logic for strings.
Regular Expressi
Compile a Python script to configure VPN in batches and a python script vpn tutorial
Origin
As we all know, the recent network is not harmonious, the speed is slow, and the VPN is still disconnected. Fortunately, yunti provides a lot of servers for switching, but there are quite a lot of yunti servers, in Linux, Network Manager does not support batch configuratio
In general, a server client that only supports one chat room uses Telnet
Books: Python Data Summary
Python tutorial here is the source code in Chapter 24th. It is used for practice research.
# Coding: utf8 # python2.7 chatser2.py # a slightly more complex chatting room server ''' after using python to start the servic
Deployment of django + uwsgi is too painful. The existing tutorials on the Internet seem to have compatibility issues with new versions. Finally, I ran to the uwsgi official website to find the tutorial and finally ran through .. however, the tutorials on the official website seem to be of a guiding nature, and the deployment seems to be a detour. here we will record and streamline the specific content environment:
Ubuntu 14.04
Pycharm and python installation tutorial, pycharmpython tutorial
Step 1: Install python
1 first go to the site download: Click to open the Link (or enter your own web site https://www.python.org/downloads/), enter, such as, select the Red Circle in the figure to download
2. Double-click the exe file for installa
Php Chinese network (www.php.cn) provides the most comprehensive basic tutorial on programming technology, introducing HTML, CSS, Javascript, Python, Java, Ruby, C, PHP, basic knowledge of MySQL and other programming languages. At the same time, this site also provides a large number of online instances, through which you can better learn programming... Reply: import antigravity in
Collaborative Filtering tutorial using Python and collaborative filtering using python
Collaborative Filtering
Preference information, such as rating, can be easily collected under the user-item data relationship. The way to recommend items for users based on the possible associations behind these scattered preferences is collaborative filtering or collaborative
Python basics document string, python basics tutorial
String formatting
String formatting is implemented using the string formatting operator % Percent. Place a string (formatted string) on the left side of %, and put the value to be formatted on the right side. You can use a value, such as a string or number, you can also use tuples or dictionaries with multi
Python tutorial 5th: Solve the leap year problem ---- the return value of input () is always a string, and python ---- input
Temp = input ('Enter the year :')
While not isinstance (temp, int ):Temp = input ('Sorry, your input is incorrect. Enter the year :') Year = int (temp)If year % 400 = 0:Print ('% d is a leap year! '% (Year ))Else:If year % 4 = 0 and year
,' '. Join (source))ifOs.system (tar_command) = =0:Print 'successful backup to%s'%TargetElse: Print 'Failed‘Results: Successful backup to/opt/soft/backup_test/20151022171749.tar.gzwhen unpacking the compressed package, there are the following problem :[[Email protected]xbackup_test]# tar-xzvf 201510221640241tar:error is not recoverable:exiting nowCheck that the compression package is not compressed in gzip format, so when the decompression is not added Z. Direct TAR-XF on it. TAR-XVF 2015
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