Windows下安装Web.py快速指南

╰半夏微凉° 2022-06-12 07:49 444阅读 0赞

# 环境介绍 #

首先介绍下安装使用的环境  
\- Windows 7  
\- Python 3.6

# Web.py介绍 #

web.py是Python在Web领域一个轻量级的解决方案，所谓轻量，就是非常简单快速满足Web页面开发的需求。  
首先来感受一下其轻量的程度吧：

import web
    
    urls = (
        '/(.*)', 'hello'
    )
    
    class hello:
        def GET(self, name):
            i = web.input(times=1)
            if not name: name = 'world'
            for c in xrange(int(i.times)): print 'Hello,', name+'!'
    
    if __name__ == "__main__": web.run(urls, globals())

综合来看，是不是非常的轻量….

# 安装指南 #

目前默认的web.py版本是0.38， 只要是针对python2而打包的，针对Python3是无法通过pip3的方式来直接安装的：  
在安装之前，需要提前安装2个依赖包：

> pip3 install db  
> pip install utils

直接安装web.py会报出若干错误信息：

> C:\\Users\\xx>pip3 install web.py  
> Collecting web.py  
> Using cached web.py-0.38.tar.gz  
> Complete output from command python setup.py egg\_info:  
> Traceback (most recent call last):  
> File “”, line 1, in  
> File “C:\\Users\\CHENJU~1\\AppData\\Local\\Temp\\pip-build-vxm84t4s\\web.py\\setup.py”, line 6, in  
> from web import **version**  
> File “C:\\Users\\CHENJU~1\\AppData\\Local\\Temp\\pip-build-vxm84t4s\\web.py\\web\_\_init\_\_.py”, line 14, in  
> import utils, db, net, wsgi, http, webapi, httpserver, debugerror  
> File “d:\\program files\\python\\lib\\site-packages\\db\_\_init\_\_.py”, line 69  
> print “var”, var  
> ^  
> SyntaxError: Missing parentheses in call to ‘print’

----------------------------------------

Command “python setup.py egg\_info” failed with error code 1 in C:\\Users\\xx~1\\AppData\\Local\\Temp\\pip-build-vxm84t  
从错误信息来看，其错误为print在不同的Python版本下的语法上的差异造成的。

所以，我们直接从github上下载源代码，进行编译安装。  
切换到python3的分支上，直接下载器源代码：  
打开其地址： [https://github.com/webpy/webpy/tree/python3][https_github.com_webpy_webpy_tree_python3]

> git clone [https://github.com/webpy/webpy.git][https_github.com_webpy_webpy.git]

待下载完成之后，进入下载目录，进行安装：

> python setup.py install

结果信息：

> D:\\OpenSource\\webpy>python setup.py install  
> D:\\Program Files\\python\\lib\\site-packages\\setuptools\\dist.py:331: UserWarning: Normalizing ‘0.40-dev0’ to ‘0.40.dev0’  
> normalized\_version,  
> running install  
> running bdist\_egg  
> running egg\_info  
> creating web.py.egg-info  
> writing web.py.egg-info\\PKG-INFO  
> writing dependency\_links to web.py.egg-info\\dependency\_links.txt  
> writing top-level names to web.py.egg-info\\top\_level.txt  
> writing manifest file ‘web.py.egg-info\\SOURCES.txt’  
> reading manifest file ‘web.py.egg-info\\SOURCES.txt’  
> writing manifest file ‘web.py.egg-info\\SOURCES.txt’  
> installing library code to build\\bdist.win-amd64\\egg  
> running install\_lib  
> running build\_py  
> creating build  
> creating build\\lib  
> creating build\\lib\\web  
> copying web\\application.py -> build\\lib\\web  
> copying web\\browser.py -> build\\lib\\web  
> copying web\\db.py -> build\\lib\\web  
> copying web\\debugerror.py -> build\\lib\\web  
> copying web\\form.py -> build\\lib\\web  
> copying web\\http.py -> build\\lib\\web  
> copying web\\httpserver.py -> build\\lib\\web  
> copying web\\net.py -> build\\lib\\web  
> copying web\\py3helpers.py -> build\\lib\\web  
> copying web\\session.py -> build\\lib\\web  
> copying web\\template.py -> build\\lib\\web  
> copying web\\test.py -> build\\lib\\web  
> copying web\\utils.py -> build\\lib\\web  
> copying web\\webapi.py -> build\\lib\\web  
> copying web\\webopenid.py -> build\\lib\\web  
> copying web\\wsgi.py -> build\\lib\\web  
> copying web\_\_init\_\_.py -> build\\lib\\web  
> creating build\\lib\\web\\wsgiserver  
> copying web\\wsgiserver\\ssl\_builtin.py -> build\\lib\\web\\wsgiserver  
> copying web\\wsgiserver\\ssl\_pyopenssl.py -> build\\lib\\web\\wsgiserver  
> copying web\\wsgiserver\\wsgiserver2.py -> build\\lib\\web\\wsgiserver  
> copying web\\wsgiserver\\wsgiserver3.py -> build\\lib\\web\\wsgiserver  
> copying web\\wsgiserver\_\_init\_\_.py -> build\\lib\\web\\wsgiserver  
> creating build\\lib\\web\\contrib  
> copying web\\contrib\\template.py -> build\\lib\\web\\contrib  
> copying web\\contrib\_\_init\_\_.py -> build\\lib\\web\\contrib  
> creating build\\bdist.win-amd64  
> creating build\\bdist.win-amd64\\egg  
> creating build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\application.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\browser.py -> build\\bdist.win-amd64\\egg\\web  
> creating build\\bdist.win-amd64\\egg\\web\\contrib  
> copying build\\lib\\web\\contrib\\template.py -> build\\bdist.win-amd64\\egg\\web\\contrib  
> copying build\\lib\\web\\contrib\_\_init\_\_.py -> build\\bdist.win-amd64\\egg\\web\\contrib  
> copying build\\lib\\web\\db.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\debugerror.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\form.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\http.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\httpserver.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\net.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\py3helpers.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\session.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\template.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\test.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\utils.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\webapi.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\webopenid.py -> build\\bdist.win-amd64\\egg\\web  
> copying build\\lib\\web\\wsgi.py -> build\\bdist.win-amd64\\egg\\web  
> creating build\\bdist.win-amd64\\egg\\web\\wsgiserver  
> copying build\\lib\\web\\wsgiserver\\ssl\_builtin.py -> build\\bdist.win-amd64\\egg\\web\\wsgiserver  
> copying build\\lib\\web\\wsgiserver\\ssl\_pyopenssl.py -> build\\bdist.win-amd64\\egg\\web\\wsgiserver  
> copying build\\lib\\web\\wsgiserver\\wsgiserver2.py -> build\\bdist.win-amd64\\egg\\web\\wsgiserver  
> copying build\\lib\\web\\wsgiserver\\wsgiserver3.py -> build\\bdist.win-amd64\\egg\\web\\wsgiserver  
> copying build\\lib\\web\\wsgiserver\_\_init\_\_.py -> build\\bdist.win-amd64\\egg\\web\\wsgiserver  
> copying build\\lib\\web\_\_init\_\_.py -> build\\bdist.win-amd64\\egg\\web  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\application.py to application.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\browser.py to browser.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\contrib\\template.py to template.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\contrib\_\_init\_\_.py to **init**.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\db.py to db.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\debugerror.py to debugerror.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\form.py to form.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\http.py to http.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\httpserver.py to httpserver.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\net.py to net.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\py3helpers.py to py3helpers.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\session.py to session.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\template.py to template.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\test.py to test.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\utils.py to utils.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\webapi.py to webapi.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\webopenid.py to webopenid.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\wsgi.py to wsgi.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\wsgiserver\\ssl\_builtin.py to ssl\_builtin.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\wsgiserver\\ssl\_pyopenssl.py to ssl\_pyopenssl.cpython-36.pyc  
> byte-compiling build\\bdist.win-amd64\\egg\\web\\wsgiserver\\wsgiserver2.py to wsgiserver2.cpython-36.pyc  
> File “build\\bdist.win-amd64\\egg\\web\\wsgiserver\\wsgiserver2.py”, line 1019  
> except socket.error, e:  
> ^  
> SyntaxError: invalid syntax

byte-compiling build\\bdist.win-amd64\\egg\\web\\wsgiserver\\wsgiserver3.py to wsgiserver3.cpython-36.pyc  
byte-compiling build\\bdist.win-amd64\\egg\\web\\wsgiserver\_\_init\_\_.py to **init**.cpython-36.pyc  
byte-compiling build\\bdist.win-amd64\\egg\\web\_\_init\_\_.py to **init**.cpython-36.pyc  
creating build\\bdist.win-amd64\\egg\\EGG-INFO  
copying web.py.egg-info\\PKG-INFO -> build\\bdist.win-amd64\\egg\\EGG-INFO  
copying web.py.egg-info\\SOURCES.txt -> build\\bdist.win-amd64\\egg\\EGG-INFO  
copying web.py.egg-info\\dependency\_links.txt -> build\\bdist.win-amd64\\egg\\EGG-INFO  
copying web.py.egg-info\\top\_level.txt -> build\\bdist.win-amd64\\egg\\EGG-INFO  
zip\_safe flag not set; analyzing archive contents…  
web.**pycache**.application.cpython-36: module references **file**  
web.**pycache**.debugerror.cpython-36: module references **file**  
creating dist  
creating ‘dist\\web.py-0.40.dev0-py3.6.egg’ and adding ‘build\\bdist.win-amd64\\egg’ to it  
removing ‘build\\bdist.win-amd64\\egg’ (and everything under it)  
Processing web.py-0.40.dev0-py3.6.egg  
creating d:\\program files\\python\\lib\\site-packages\\web.py-0.40.dev0-py3.6.egg  
Extracting web.py-0.40.dev0-py3.6.egg to d:\\program files\\python\\lib\\site-packages  
File “d:\\program files\\python\\lib\\site-packages\\web.py-0.40.dev0-py3.6.egg\\web\\wsgiserver\\wsgiserver2.py”, line 1019  
except socket.error, e:  
^  
SyntaxError: invalid syntax

Adding web.py 0.40.dev0 to easy-install.pth file

Installed d:\\program files\\python\\lib\\site-packages\\web.py-0.40.dev0-py3.6.egg  
Processing dependencies for web.py==0.40.dev0  
Finished processing dependencies for web.py==0.40.dev0

从结果信息来看，其中依然存在若干错误信息，对于Python3而言，这些都是在python2下的语法在Python 3下无法被正确解析的问题，估计在后续版本，可以将python2的内容在python 3的分支上逐步更新。

目前的这个分支还是dev分支，存在若干问题还是可以理解的。

# 总结 #

web.py的这位作者已经仙逝，继任者还需努力，继续更新呀，从github上最后一次提交是在2017年初，不知道是否绝版了……

[https_github.com_webpy_webpy_tree_python3]: https://github.com/webpy/webpy/tree/python3
[https_github.com_webpy_webpy.git]: https://github.com/webpy/webpy.git