Problem Description:
Mac system, using the sudo command to upgrade the Python six module, a operation not permitted error message appears
Error Location:
Http://stackoverflow.com/questions/29485741/unable-to-upgrade-python-six-package-in-mac-osx-10-10-2
Http://www.jianshu.com/p/e90fb15684fa
Summary: Th
on to loveAlways watching it slip away...Now let's practice the ability to find love, give you a string a, if it contains a "AI" (not case-sensitive) then the output loves, otherwise output single.‘LOVE‘if‘love‘ina.lowerelse‘SINGLE‘20. Give you a lowercase English string A and a non-negative number B (0Here, Z and a of the alphabet are connected, and if you exceed Z, you return to a. For example a= "Cagy", b=3, the output FDJBAnswer:s=‘‘for i in a:iford(i)>=97andord(i)122:i=chr(97+(ord(i)+b-97)
The examples in this article describe how Python obtains native MAC addresses and IP addresses. Share to everyone for your reference. Specific as follows:
Import sys, socketdef GETIPADDRS (hostname): result = Socket.getaddrinfo (hostname,none,0,socket. SOCK_STREAM) return [x[4][0] for x in result]# the name of the local machinehostname = Socket.gethostname () Try: PR int "IP addresses:", ",". Join (G
CD into the project root directory to create a crawler py file,Note that there is a small error here: scrapy genspider name URL, where the URL does not require "http://".Then use Pycharm to open the project, and remember to re-select the virtual environment configuration, directly select the front Workon selected virtual environment.Then a debugging tip, create a new main.py file in the scrapy.cfg sibling directoryThen the code looks like this:1 #with this file to debug, you can improve the dev
Download the installation package: Http://sourceforge.net/projects/mysql-python then unzip.Switch to directory executionPython setup.py InstallError:Environmenterror:mysql_config not foundWorkaround: Locate the Site.cfg file in the installation package and#mysql_config =/usr/local/bin/mysql_configModified to:Mysql_config =/usr/local/mysql/bin/mysql_configGo onPython setup.py InstallAfter installation, enter Python
Initially wanted to use wingide for Python development learning, but wingide needed a fee. So on-line search the next wingide crack method, through the anti-compilation Python method to crack, results mac under the latest version of the Wingide cracked failure, had to find another way.Before learning HTML to see Sublimetext, but then directly using the
Since virtualenv can not only isolate the Python version, it can also isolate different versions of the plug-in module and choose the Virtualenv+virtualenvwrapp combination based on the development scenario. First, install VIRTUALENV1, Mac Pro system comes with Python 2.7.102, manually install Python 3.5.43, install p
System: OS X 10.11.6
The MAC system has its own Python2.7, using the Easy_install command with its own system to install the modules online. If you need to use the PYTHON3 environment, python3.5 is invoked at the terminal input Python3 after installing the Python3.5.1, view Python version
Python
2, install NumPyNumPy is a
The way of thinking is mainly based on this article, linking:Http://www.jb51.net/article/78667.htmBut when the installation of brew, it may be the problem of the site, has been an errorSo looking for information from the Internet, brew installation needs a new window, non-root developmentSpecific methods refer to connection: http://jingyan.baidu.com/article/335530da8b2b0419cb41c338.htmlThe command line is as follows:
Ruby-e "$ (curl-fssl https://raw.githubusercontent.com/Homebrew/install/m
character Def Genpass (n=16): "" "generates a random password, the default length is 16 characters" "" passwd = List ( ) for I in Range (n): passwd + = Random.choice (alnums) return '. Join (passwd) def write_to_clipboard (output): "" Copies the output content to the Clipboard "" Process = subprocess. Popen (' pbcopy ', env={' LANG ': ' en_US. UTF-8 '}, stdin=subprocess. PIPE) process.communicate (Output.encode (' Utf-8 ')) def main (): If Len (sys.argv) = = 1:PASSWD = Genpass ()
Because Mac OS is a UNIX-like system, the basic and Linux system use is not very different, but the user log on automatically execute the environment variable file differencesMac System:VI ~/.bash_profileLinux systems:ls -A. bash*. bash_history. bash_logout. bash_profile . BASHRCThere are BASH_PROFILE,BASHRC in Linux, the following are the differences:
/etc/profile: This file sets the environment information for each user of the system, and t
Create a new ~/.pythonstartup file and write the following:$ cat ~/.pythonstartup Import sysimport readlineimport rlcompleterif sys.platform = = ' Darwin ' and sys.version_info[0] = = 2 : Readline.parse_and_bind ("Bind ^i Rl_complete") else:readline.parse_and_bind ("Tab:complete")Then set the environment variable Pythonstartup, can be set in the ~/.bash_profile file of the home directory, append the following line. As follows:Export pythonstartup= $HOME/.pythonstartupReload the ~/.bash_profile c
. DS_Store is a hidden file created by Apple's Mac OS X operating system. It stores custom properties of folders, for example, you can select the icon position or background color of a file. -- See Wikipedia
Sometimes ,. DS_Store is especially troublesome, such as compressing files or using version control software such as svn and git, so a piece of code is written for Recursive deletion. DS_Store file. The younger brother is the first programmer. The
First, download the relevant Chinese font Simhei file:Second, find the Matplotlib data storage location by the following code:Import matplotlib Print (Matplotlib.matplotlib_fname ())My directory is: /VOLUMES/05/ANCONDA/ANACONDA3/LIB/PYTHON3.6/SITE-PACKAGES/MATPLOTLIB/MPL-DATA/MATPLOTLIBRCThird, open the above directory, and copy the downloaded font file simhei.ttf to the fonts/ttf/ Directory of the above directoryFour, in the above directory with sublime open MATPLOTLIBRC, find #font. Sans-s
The development platform is a Mac and needs to use the Python image processing library pil, which records the installation process as well as the problems that arise.The basic installation process is this, using the command pip for installation
The code is as follows
Copy Code
$ pip Install PiLDownloading/unpacking pilCould not find no downloads that satisfy the requirement PILS
Reinstall Easy_install (Setuptools)1, to download Https://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-py2.7.egg
2, to the terminal to perform sudo sh setuptools-0.6c11-py2.7.egg
3, clear the download Setuptools-0.6c11-py2.7.egg
Remove MySQLsudo rm/usr/local/mysqlsudo rm-rf/usr/local/mysql*sudo rm-rf/library/startupitems/mysqlcomsudo rm-rf/library/preferencepanes/mysql*Vim/etc/hostconfig and removed the line mysqlcom=-yes-RM-RF ~/library/preferencepanes/mysql*sudo rm-rf/library
Label:The following problem occurs when you install Python MySQL on a Mac computer today:The installation is using sudo pip install Mysql-python to install the MySQL module with no problem, but when importing mysqldb in PythonTraceback (most recent):File "File "mysqldb/__init__.py", line A, in Import _mysqlImporterror:dlopen (./_mysql.so, 2): no suitable image fo
When setting up the Django environment under Mac, I found an error when installing Mysql-python with PIP:Environmenterror:mysql_config not FounRead the information on the Internet, the solution is as follows:1, download Mysql-python (on-line Baidu download, I use the 1.2.4)2, decompression, setup_posix.py in Mysql_config.path changes as follows:Mysql_config.path
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