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  • %d" % (data, host, port) self.transport.write(data, (host, port)) reactor.listenUDP(9999, Echo()) reactor.run() And I get this: def datagramReceived(self, data, (host, port)): ^ SyntaxError: invalid ...

    2012-10-13 18:21:39

    0

    I'm trying to set up a UDP server with Twisted folliowing this http://twistedmatrix.com/documents/current/core/howto/udp.html

    However, I've hit a brickwall just starting. I tried this sample code:

    from twisted.internet.protocol import DatagramProtocol

    from twisted.internet import reactor

    class Echo(DatagramProtocol):

    def datagramReceived(self, data, (host, port)):

    print "received %r from %s:%d" % (data, host, port)

    self.transport.write(data, (host, port))

    reactor.listenUDP(9999, Echo())

    reactor.run()

    And I get this:

    def datagramReceived(self, data, (host, port)):

    ^

    SyntaxError: invalid syntax

    I'm new to Python so I'm clueless. I stripped the code down to the minimum, commenting everything but the class declaration and the method header (adding a pass) but I get the same. Are those paired parameters not supported anymore?

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  • 这个问题一般是在引号里的内容周围有语法错误,比如多了逗号、引号等标点符号,请仔细检查

    这个问题一般是在引号里的内容周围有语法错误,比如多了逗号、引号等标点符号,请仔细检查

    展开全文
  • pip install does not work when trying to install virtualenv, requests or pex on CentOS6. I am on python2.6 and pip 9.0.1. Can anyone tell me why is this happening?(pex_build)[root@pex pex_build]# pip ...

    pip install does not work when trying to install virtualenv, requests or pex on CentOS6. I am on python2.6 and pip 9.0.1. Can anyone tell me why is this happening?

    (pex_build)[root@pex pex_build]# pip install virtualenv

    Output:

    Traceback (most recent call last):

    File "/opt/pex_build/bin/pip", line 7, in

    from pip._internal import main

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/__init__.py", line 42, in

    from pip._internal import cmdoptions

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/cmdoptions.py", line 16, in

    from pip._internal.index import (

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/index.py", line 526

    {str(c.version) for c in all_candidates},

    ^

    SyntaxError: invalid syntax

    Command:

    (pex_build) [root@pex pex_build]# pip install requests pex

    Output:

    Traceback (most recent call last):

    File "/opt/pex_build/bin/pip", line 7, in

    from pip._internal import main

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/__init__.py", line 42, in

    from pip._internal import cmdoptions

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/cmdoptions.py", line 16, in

    from pip._internal.index import (

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/index.py", line 526

    {str(c.version) for c in all_candidates},

    ^

    SyntaxError: invalid syntax

    Also curl gives the similar error, when trying to get get-pip.py

    Command:

    (pex_build) [root@pex pex_build]# curl https://bootstrap.pypa.io/get-pip.py | python

    % Total % Received % Xferd Average Speed Time Time Time Current

    Dload Upload Total Spent Left Speed

    100 1602k 100 1602k 0 0 7373k 0 --:--:-- --:--:-- --:--:-- 14.6M

    Traceback (most recent call last):

    File "", line 20636, in

    File "", line 197, in main

    File "", line 82, in bootstrap

    File "/tmp/tmp5zrn_f/pip.zip/pip/_internal/__init__.py", line 42, in

    File "/tmp/tmp5zrn_f/pip.zip/pip/_internal/cmdoptions.py", line 16, in

    File "/tmp/tmp5zrn_f/pip.zip/pip/_internal/index.py", line 526

    {str(c.version) for c in all_candidates},

    ^

    SyntaxError: invalid syntax

    解决方案

    The problem is your version of pip is broken with Python 2.6. If you upgrade to 9.0.3 it should work again.

    pip install pip==9.0.3

    If you are unable to upgrade pip using pip, you could re-install the package as well using your local package manager, and then upgrade to pip 9.0.3.

    Keep in mind that if you are using virtual environments it is recommended that you upgrade virtualenv as well so that your virtual environments will have pip 9.0.3 as well.

    pip install virtualenv==15.2.0

    Be careful though to not upgrade to a version of pip higher than 9.0.3 or virtualenv higher than 15.2.0 as Python 2.6 support was removed with those versions, as mentioned by Prateek.

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  • pip install does not work when trying to install virtualenv, requests or pex on CentOS6. I am on python2.6 and pip 9.0.1. Can anyone tell me why is this happening?(pex_build)[root@pex pex_build]# pip ...

    1586010002-jmsa.png

    pip install does not work when trying to install virtualenv, requests or pex on CentOS6. I am on python2.6 and pip 9.0.1. Can anyone tell me why is this happening?

    (pex_build)[root@pex pex_build]# pip install virtualenv

    Output:

    Traceback (most recent call last):

    File "/opt/pex_build/bin/pip", line 7, in

    from pip._internal import main

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/__init__.py", line 42, in

    from pip._internal import cmdoptions

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/cmdoptions.py", line 16, in

    from pip._internal.index import (

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/index.py", line 526

    {str(c.version) for c in all_candidates},

    ^

    SyntaxError: invalid syntax

    Command:

    (pex_build) [root@pex pex_build]# pip install requests pex

    Output:

    Traceback (most recent call last):

    File "/opt/pex_build/bin/pip", line 7, in

    from pip._internal import main

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/__init__.py", line 42, in

    from pip._internal import cmdoptions

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/cmdoptions.py", line 16, in

    from pip._internal.index import (

    File "/opt/pex_build/lib/python2.6/site-packages/pip/_internal/index.py", line 526

    {str(c.version) for c in all_candidates},

    ^

    SyntaxError: invalid syntax

    Also curl gives the similar error, when trying to get get-pip.py

    Command:

    (pex_build) [root@pex pex_build]# curl https://bootstrap.pypa.io/get-pip.py | python

    % Total % Received % Xferd Average Speed Time Time Time Current

    Dload Upload Total Spent Left Speed

    100 1602k 100 1602k 0 0 7373k 0 --:--:-- --:--:-- --:--:-- 14.6M

    Traceback (most recent call last):

    File "", line 20636, in

    File "", line 197, in main

    File "", line 82, in bootstrap

    File "/tmp/tmp5zrn_f/pip.zip/pip/_internal/__init__.py", line 42, in

    File "/tmp/tmp5zrn_f/pip.zip/pip/_internal/cmdoptions.py", line 16, in

    File "/tmp/tmp5zrn_f/pip.zip/pip/_internal/index.py", line 526

    {str(c.version) for c in all_candidates},

    ^

    SyntaxError: invalid syntax

    解决方案

    The problem is your version of pip is broken with Python 2.6. If you upgrade to 9.0.3 it should work again.

    pip install pip==9.0.3

    If you are unable to upgrade pip using pip, you could re-install the package as well using your local package manager, and then upgrade to pip 9.0.3.

    Keep in mind that if you are using virtual environments it is recommended that you upgrade virtualenv as well so that your virtual environments will have pip 9.0.3 as well.

    pip install virtualenv==15.2.0

    Be careful though to not upgrade to a version of pip higher than 9.0.3 or virtualenv higher than 15.2.0 as Python 2.6 support was removed with those versions, as mentioned by Prateek.

    展开全文
  • Syntax error on token “class”, invalid VariableDeclarator 标记“class”上的语法错误,variabledeclarator无效 想到class是Java中的关键字,我就把class改为了clas,结果发现问题解决了,这个问题告诉我们,...
  • I'm trying to execute the following code, but I'm getting SyntaxError: invalid syntax at the if statement. I'm sure it's related to html as it worked previously without the preceding html; I'm having ...
  • and I had this "Uncaught SyntaxError: Invalid or unexpected token" error on my jQuery.jGrowl <pre class="lang-html prettyprint-override"><code><script src="<?php echo base_url(); ?>js/...
  • 原因是起了.txt的后缀名,改为.c就OK了。
  • 程序中显示一个红叉,将鼠标放在红叉上面,显示错误“Syntax error on token "gfgfgvc", delete this token” 背景:程序进行人工版本融合,第一次打开程序 处理方式: 1、搜索"gfgfgvc",程序中并不存在,该处理...
  • http://support.microsoft.com/?id=159777症状 当您登录到 Microsoft Visual SourceSafe 上时, 您可能会收到下面的错误信息: invalid Syntax on line Line... loadTOCNode(1, symptoms); 当您登录到 Mi
  • eclipse中遇到了Syntax error on token "Invalid Character", delete this token(令牌“无效字符”上的语法错误,删除此令牌)的错误提示,看代码是完全没有问题,上网查了半天发现遇到这个问题的好像不太多,总结...
  • (1)把 filetype indent on 这个命令加入 /etc/vimrc 启动配置文件,因为VIM会首先加载这个文件,然后才会去识别文件类型,所以能保证识别文件类型之前已经把filetype indent 置于 on。 (2)执行如下命令,强迫...
  • 成功解决 SyntaxError: invalid token

    万次阅读 多人点赞 2018-05-26 15:32:30
    成功解决 SyntaxError: invalid token 目录 解决问题 解决思路 解决方法 解决问题 SyntaxError: invalid token 解决思路 语法错误:标记无效 解决方法 语法错误:无效令牌,故导入...
  • http启动失败:httpd[20947]: AH00526: Syntax error on line 31 of /etc/httpd/conf.d/php.conf: 记一次http启动失败 环境:centos7.4  原装环境:zabbix-server3.4(10051);zabbix-agent(10050);mariadb...
  • 今天在使用bootstrap的时候引入的js文件出现错误Syntax error on token "Invalid Regular Expression Options", no accurate correc; 大概意思就是无效的表达式什么的,具体解决方法如下: 1、选中报错的js文件...
  • I've just arted to learn node, and when executing a very simple app from a powershell terminal:node app.jsI am getting the following exception:SyntaxError: Invalid or unexpected tokenat createScript ...
  • 今天写代码的时候忽然发现编不过去了,R文件出现了问题,如题所说是语法错误,进到R里面看到: public static final class string { public static final int =0x7f0d06d0; ... } ...第一眼没有仔细看,只是看到一...
  • invalid syntax无效的语法。 解决办法:查看当前语句中的 , 如果当前行没找到错误,依次往上找,往上找时可以利用是否有输出进行快速查找。 原因:python语法很严格,少了左括号、...
  • Composite Type Input and Output Syntax 8.16.6.复合类型的输入及输出语法 The external text representation of a composite value consists of items that are interpreted accordingto the I/O conversion ...
  • Uncaught SyntaxError: Invalid or unexpected token

    万次阅读 多人点赞 2018-08-06 13:45:59
    前言 ...Uncaught SyntaxError: Invalid or unexpected token 无效或意外的标记,找了半天,终于找到了,这样的问题就得靠眼力啊。 二.原因 由于缺少单引号 三.解决 加上单引号,就ok了。 ...
  • 在IDLE中写print(“Hello world”)后另存为,在cmd运行时遇到SyntaxError: invalid syntax 关于SyntaxError: invalid syntax 我也搜索过什么意思,是因为这一行后面没加冒号:,但是我之后也试过加冒号,但是不行 ...
  • 翻译下: uncaught:未捕获; syntax: 语法; invalid:无效的; unexpected: 意外的; token:表征,记号; 一般就是符号中文打出来的
  • Posted on 2009-05-30 23:41 Frank Xu Lei 阅读(375) 评论(2) 编辑 收藏 网摘 所属分类: WCF分布式开发常见错误 <!--<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"xmlns:dc=...
  • 如何修复WordPress网站的Syntax Errors语法错误  如果您在WordPress建站中,经常在网站上尝试各种功能,那么有可能会收到以下错误“Syntax error,unexpected…”,请不要惊慌,你不是第一个在WordPress...
  • 今天项目碰到项目在chrome49版本下报Uncaught SyntaxError: unexpected token *错误,但是在高版本下又一切正常。真是一脸的蒙圈,赶紧各种的百度。 资料一: 控制台的提示:Uncaught SyntaxError: Unexpected ...
  • Uncaught SyntaxError: Invalid or unexpected token
  • HINT无效的几个场景

    2019-07-25 07:30:00
    碰巧看见了dba-oracle上的一个问题,算是基础性问题,http://www.dba-oracle.com/t_oracle_index_hint_syntax.ht...

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