图中输入choice的内容是一个字符串，正常调用d.eat()这可不是一个字符串。 报错提示Dog中不存在attribute choice(字符串)
应用场景如下：从api下载数据，json解析，存入字典，定期保存。重启程序需要加载保存的文本。 问题1：json中都是unicode串，存到文本里都是些\u**...
'C:\\Python27\\lib\\site-packages\\docutils-0.14-py2.7.egg', 'C:\\Python27\\lib\\site-packages\\decorator...-4.2.1-py2.7.egg', 'C:\\Windows\\system32\\python27.zip', 'C:\\Python27\\DLLs', 'C:\\Python27\\lib',...'C:\\Python27\\lib\\plat-win', 'C:\\Python27\\lib\\lib-tk', 'C:\\Python27', 'C:\\Python27\\lib\\site-packages...', 'C:\\Python27\\lib\\site-packages\\win32', 'C:\\Python27\\lib\\site-packages\\win32\\lib', 'C:\\Python27...\\lib\\site-packages\\Pythonwin', 'C:\\Python27\\lib\\site-packages\\wx-2.8-msw-unicode'] 得解。
Copying setuptools-15.2-py2.7.egg to c:\python27\lib\site-packages setuptools 15.2 is already the active...easy_install.exe script to C:\Python27\Scripts Installing easy_install-2.7-script.py script to C:\Python27...\Scripts Installing easy_install-2.7.exe script to C:\Python27\Scripts Installed c:\python27\lib\site-packages...Python27\Scripts Installing pip2.7.exe script to C:\Python27\Scripts Installing pip2-script.py script...to C:\Python27\Scripts Installing pip2.exe script to C:\Python27\Scripts Using c:\python27\lib\site-packages
-mno-cygwin -mdll -O -Wall "-IC:\Program Files (x86)\ZBar\include" -Ic:\python27\include -Ic:\python27...-mno-cygwin -mdll -O -Wall "-IC:\Program Files (x86)\ZBar\include" -Ic:\python27\include -Ic:\python27...-mno-cygwin -mdll -O -Wall "-IC:\Program Files (x86)\ZBar\include" -Ic:\python27\include -Ic:\python27...-mdll -O -Wall "-IC:\Program Files (x86)\ZBar\include" -Ic:\python27\include -Ic:\python27\PC -c scanner.c...\libs -Lc:\python27\PCbuild -Lc:\python27\PC\VS9.0 -llibzbar-0 -lpython27 -lmsvcr90 -o build\lib.win32
\\Lib\\idlelib', 'C:\\Windows\\system32\\python27.zip', 'D:\\Python27\\DLLs', 'D:\\Python27\\lib', 'D...:\\Python27\\lib\\plat-win', 'D:\\Python27\\lib\\lib-tk', 'D:\\Python27', 'D:\\Python27\\lib\\site-packages...'] >>> sys.path.append('/tmp') >>> sys.path ['E:\\Note\\Python', 'D:\\Python27\\Lib\\idlelib', 'C:\\Windows...\\system32\\python27.zip', 'D:\\Python27\\DLLs', 'D:\\Python27\\lib', 'D:\\Python27\\lib\\plat-win', ...'D:\\Python27\\lib\\lib-tk', 'D:\\Python27', 'D:\\Python27\\lib\\site-packages', '/tmp'] 赋值语句，variables
/configure --prefix=/usr/local/python27 && make -j4 && make install && export PATH=$PATH:/usr/local/python27.../bin/ ### cd /root/ins_mycli unzip setuptools-36.0.1.zip cd setuptools-36.0.1 /usr/local/python27/bin...python2.7 setup.py install ### cd /root/ins_mycli tar xf pip-1.5.6.tar.gz cd pip-1.5.6 && /usr/local/python27.../bin/python2.7 setup.py build && /usr/local/python27/bin/python2.7 setup.py install ### /usr/local/python27.../bin/pip install mycli echo 'alias mycli="/usr/local/python27/bin/mycli"' >> /root/.bashrc
/configure --prefix=/usr/local/python27 make&&make install 2、下载ipython https://pypi.python.org/...pypi/ipython/4.2.0 tar xvf ipython-4.2.0.tar.gz cd ipython-4.2.0 /usr/local/python27/bin.../python2.7 setup.py install ln -sv /usr/local/python27/bin/python2.7 /usr/bin/python27 ...ln -sv /usr/local/python27/bin/ipyton /usr/bin/ 使用ipython时直接报错 1、报错：ImportError: No module named...traitlets 在github 上下载https://github.com/ipython/traitlets # /usr/local/python27/bin/python2.7
/configure --prefix=/usr/local/python27 make && make install 4、安装ipython tar xvzf ipython-1.2.1.tar.gz...调用python来安装 /usr/local/python27/bin/python2.7 setup.py build #编译 /usr/local/python27/bin/python2.7...setup.py install #安装，它会安装到/usr/local/python27/bin/ 做软连接到 ln -sv /usr/local/python27/bin/python2.7 /usr.../bin/python27 ln -sv /usr/local/python27/bin/ipython /usr/bin/ipython 至此安装完毕，python27即可使用，原有旧版本输入python
Public Python-2.7.6.tar.xz Videos [root@localhost ~]# [root@localhost Python-2.7.6]# /usr/local/python27.../bin/python2.7 setup.py build [root@localhost ipython-1.2.1]# /usr/local/python27/bin/python2.7 setup.py...install [root@localhost ipython-1.2.1]# ls /usr/local/python27/bin/ 2to3 ipcluster ipengine iptest.../bin/python2.7 /usr/bin/python27 `/usr/bin/python27' -> `/usr/local/python27/bin/python2.7' [root@localhost...ipython-1.2.1]# ln -sv /usr/local/python27/bin/ipython /usr/bin/ `/usr/bin/ipython' -> `/usr/local/python27
/configure --prefix=/usr/local/python27 make && make install 三、安装ipython-->python一个拓展模块，支持很多方便快捷的功能，例如补全...releases/download/rel-1.2.1/ipython-1.2.1.tar.gz tar xf ipython-1.2.1.tar.gz cd ipython-1.2.1 /usr/local/python27.../bin/python2.7 setup.py install # 查看安装结果 ls /usr/local/python27/bin/ 2to3 idle ipcluster ipcontroller...四、创建链接 ln -s /usr/local/python27/bin/python2.7 /usr/bin/python27 ln -s /usr/local/python27/bin/ipython
\lib\site-packages\bs4\element.py", line 1045, in __str__ return self.encode() File "C:\Python27...element.py", line 1055, in encode u = self.decode(indent_level, encoding, formatter) File "C:\Python27...\lib\site-packages\bs4\element.py", line 1195, in decode_contents formatter)) File "C:\Python27..., formatter) File "C:\Python27\lib\site-packages\bs4\element.py", line 1195, in decode_contents ...(val, formatter) File "C:\Python27\lib\site-packages\bs4\element.py", line 163, in format_string
\DLLs’, ‘D:\to ols\Python27\lib’, ‘D:\tools\Python27\lib\plat-win’, ‘D:\tools\Python27\...\lib\lib-tk’, ‘D:\tools\Python27’, ‘D:\tools\Python27\lib\site-packages’, ‘D:\tools\Python27...sys.path.append(“E:\”) print(sys.path) [”, ‘C:\Windows\system32\python27.zip’, ‘D:\tools\Python27...\DLLs’, ‘D:\to ols\Python27\lib’, ‘D:\tools\Python27\lib\plat-win’, ‘D:\tools\Python27\...\lib\lib-tk’, ‘D:\tools\Python27’, ‘D:\tools\Python27\lib\site-packages’, ‘D:\tools\Python27
management\commands\runserver.py", line 92, in inner_runself.validate(display_num_errors=True)File "C:\Python27..._populate()File "C:\Python27\lib\site-packages\django\db\models\loading.py", line 72, in _populateself.load_app...(app_name, True)File "C:\Python27\lib\site-packages\django\db\models\loading.py", line 96, in load_appmodels...= import_module('.models', app_name)File "C:\Python27\lib\site-packages\django\utils\importlib.py",...line 35, in import_module__import__(name)File "C:\Python27\lib\site-packages\django_blog_zinnia-0.12.3
C:\Python27\lib\site-packages\robot\htmldata\lib\jsxcompressor.min.js目录下需有jsxcompressor.min.js文件，可以避免执行测试用例时...'c:\users\190146\appdata\local\temp\RIDEcbrrku.d\report.html' failed: No such file or directory: C:\Python27...\Lib\site-packages\robot\htmldata\rebot下 002.以下文件开头需要添加三行代码： 1.C:\Python27\Lib\...site-packages\robot\htmldata\htmlfilewriter 2.C:\Python27\Lib\site-packages\robot\reporting...\Lib\site-packages\robot\reporting文件下的logreportwriters.py文件和C:\Python27\Lib\site-packages\robot\htmldata
/configure --prefix=/usr/local/python27 [root@stu Python-2.7.10]# make && make install 安装ipython [root...~]# tar xf ipython-3.2.1.tar.gz [root@stu ~]# cd ipython-3.2.1 [root@stu ipython-3.2.1]# /usr/local/python27.../bin/python2.7 setup.py build [root@stu ipython-3.2.1]# /usr/local/python27/bin/python2.7 setup.py install...建立链接 [root@stu ~]# ln -sv /usr/local/python27/bin/python2.7 /usr/bin/python27 `/usr/bin/python27' ->... `/usr/local/python27/bin/python2.7' [root@stu bin]# ln -sv /usr/local/python27/bin/ipython /usr/bin/
\include -Ic:\python27\PC -c src/zbarlight/_zbarlight.c -o build\temp.win32-2.7\Release\src\zbarlight...\libs -Lc:\python27\PCbuild -Lc:\python27\PC\VS9.0 -llibzbar-0 -lpython27 -lmsvcr90 -o build\lib.win32...\lib\site-packages\zbarlight-1.2-py2.7-win32.egg' (and everything under it) creating c:\python27\lib\...site-packages\zbarlight-1.2-py2.7-win32.egg Extracting zbarlight-1.2-py2.7-win32.egg to c:\python27\lib...\site-packages zbarlight 1.2 is already the active version in easy-install.pth Installed c:\python27
IO编程 一、文件读写 1、读文件 要以读文件的模式打开一个文件对象，使用Python内置的open()函数，传入文件名和标示符： f=open('C:\Python27/README.txt','r'...如果文件不存在，open()函数就会抛出一个IOError的错误： f=open('C:\Python27/donotREADME.txt','r') Traceback (most recent call...last): File "C:/…/lx.py", line 1, in f=open('C:\Python27/donotREADME.txt','r') IOError: [...Errno 2] No such file ordirectory: 'C:\\Python27/donotREADME.txt' 如果文件打开成功，接下来，调用read()方法可以一次读取文件的全部内容...: f=open('C:\Python27/README.txt','r') print f.read() 'This is Python version2.7.9\n================
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