This question already has an answer here: How do I install pip on Windows? 35 answers If you are on windows: Press the windows button Right click 'computer' Click properties On the left top you see list of stuff, click on advanced system configuration Click system variables Go to path and add: ;c:Python27;C:Python27Scripts Change it to your python path, ; is to start a
这个问题在这里已经有了答案： 我如何在Windows上安装点子？ 35个答案 如果你在windows上： 按下窗口按钮 右键点击'电脑' 点击属性 在左上角看到东西列表，点击高级系统配置 点击系统变量 转到路径并添加：; c： Python27 ; C： Python27 Scripts 将其更改为您的Python路径; 是开始一个新的变量。 还有一些事情，我告诉你点击可能有一个不同的（但相似的）名称，我翻译这从荷兰这就是为什么:)
This question already has an answer here: How do I install pip on Windows? 35 answers 你必须在Windows命令提示符中执行该命令，而不是在python shell中。 How do I install pip on Windows? This installed Pip at C:Python27Scriptspip.exe. Find pip.exe on your computer, then add its folder (for example, C:Python27Scripts) to your path (Start / Edit environment variables). Now you should be able t
这个问题在这里已经有了答案： 我如何在Windows上安装点子？ 35个答案 你必须在Windows命令提示符中执行该命令，而不是在python shell中。 我如何在Windows上安装点子？ 这在C： Python27 Scripts pip.exe上安装了Pip。 在您的计算机上查找pip.exe，然后将其文件夹（例如，C： Python27 Scripts）添加到您的路径（启动/编辑环境变量）。 现在你应该可以从命令行运行pip了。 尝试安装软件包： pip安装httpie
This question already has an answer here: How do I install pip on Windows? 35 answers You can use these binaries to install pip or any other packages of your interest. http://www.lfd.uci.edu/~gohlke/pythonlibs/#pip Installing with source Go to this link: https://bootstrap.pypa.io/get-pip.py Copy the contents of this file onto another new file and save it as get-pip.py (when it asks yo
这个问题在这里已经有了答案： 我如何在Windows上安装点子？ 35个答案 您可以使用这些二进制文件来安装pip或您感兴趣的任何其他软件包。 http://www.lfd.uci.edu/~gohlke/pythonlibs/#pip 使用源代码安装 转到此链接：https：//bootstrap.pypa.io/get-pip.py 将该文件的内容复制到另一个新文件中，并将其保存为get-pip.py（当它询问您要对文件执行什么操作时，单击Save，然后将该文件的内容复制到另一个新文件中），
This question already has an answer here: How do I install pip on Windows? 35 answers The pip command is a tool for installing and managing Python packages, such as those found in the Python Package Index. It's a replacement for easy_install. https://github.com/pypa/pip Using PIP, You can install the module. It will install the dependency also. Pip is a package management system
这个问题在这里已经有了答案： 我如何在Windows上安装点子？ 35个答案 pip命令是用于安装和管理Python包的工具，例如Python包索引中的那些。 它是easy_install的替代品。 https://github.com/pypa/pip 使用PIP，您可以安装模块。 它也会安装依赖项。 Pip是一个包管理系统，用于安装和管理用Python编写的软件包。 您必须下载PIP，然后才能使用pip来安装软件包。 从这里下载pip：https：//pypi.python.org/pypi/pi
I'm having issues getting going with a Python target in ANTLR4. There seems to be very few examples available and going to the corresponding Java code doesn't seem relevant. I'm using the standard Hello.g4 grammar: // Define a grammar called Hello grammar Hello; r : 'hello' ID ; // match keyword hello followed by an identifier ID : [a-z]+ ; // match lower-case
我遇到的问题是ANTLR4中的Python目标。 似乎有很少的例子可用，去相应的Java代码似乎并不相关。 我使用标准的Hello.g4语法： // Define a grammar called Hello grammar Hello; r : 'hello' ID ; // match keyword hello followed by an identifier ID : [a-z]+ ; // match lower-case identifiers WS : [ trn]+ -> skip ; // skip spaces, tabs, newlines 示例（从标准Hello.g4示例构建）： input
I am processing a csv -file which is 2.5 GB big. The 2.5 GB table looks like this: columns=[ka,kb_1,kb_2,timeofEvent,timeInterval] 0:'3M' '2345' '2345' '2014-10-5',3000 1:'3M' '2958' '2152' '2015-3-22',5000 2:'GE' '2183' '2183' '2012-12-31',515 3:'3M' '2958' '2958' '2015-3-10',395 4:'GE' '2183' '2285' '2015-4-19',1925 5:'GE' '2598' '2598' '2015-3-17',1915 And I want to groupby ka and kb_1 to g
我正在处理一个大小为2.5 GB的csv文件。 2.5 GB的表格如下所示： columns=[ka,kb_1,kb_2,timeofEvent,timeInterval] 0:'3M' '2345' '2345' '2014-10-5',3000 1:'3M' '2958' '2152' '2015-3-22',5000 2:'GE' '2183' '2183' '2012-12-31',515 3:'3M' '2958' '2958' '2015-3-10',395 4:'GE' '2183' '2285' '2015-4-19',1925 5:'GE' '2598' '2598' '2015-3-17',1915 我想要groupby ka和kb_1来得到如下结果： columns=[ka,kb,error
I have a class that implements virtual attributes using __getattr__ . The attributes can be expensive, eg performing a query. Now, I am using a library which checks if my object has the attribute before actually getting it. As a consequence, a query is executed two times instead of one. Of course it makes sense to actually execute __getattr__ to really know if the attribute exists. class C(
我有一个使用__getattr__实现虚拟属性的类。 属性可能很昂贵，例如执行查询。 现在，我正在使用一个库，在实际获取它之前检查我的对象是否具有该属性。 因此，查询被执行两次而不是一次。 当然，实际执行__getattr__才能真正知道该属性是否存在。 class C(object): def __getattr__(self, name): print "I was accessed" return 'ok' c = C() hasattr(c, 'hello') 有什么办法可以防止这种情况发生？
I'm trying to use the join function on a numpy array composed of only strings (representing binary floats) to get the joined string in order to use the numpy.fromstring function, but the join function doesn't seem to work properly. Any idea why? Which alternative function can I use to do that? Here is a standalone example to show my problem: import numpy as np nb_el = 10 table = n
我试图在一个由只有字符串（代表二进制浮点数）组成的numpy数组上使用join函数来获取连接字符串，以便使用numpy.fromstring函数，但join函数似乎不能正常工作。 任何想法为什么？ 我可以使用哪种替代功能来做到这一点？ 这是一个独立的示例来显示我的问题： import numpy as np nb_el = 10 table = np.arange(nb_el, dtype='float64') print table binary = table.tostring() binary_list = map(''.join, zip(*[iter(bi
I want to install pip. It should support Python 3, but it requires setuptools, which is available only for Python 2. How can I install pip with Python 3? edit: Manual installation and use of setuptools is not the standard process anymore. If you're running Python 2.7.9+ or Python 3.4+ Congrats, you should already have pip installed. If you do not, read onward. If you're runnin
我想安装点子。 它应该支持Python 3，但它需要setuptools，它仅适用于Python 2。 我如何使用Python 3安装pip？ 编辑：手动安装和使用setuptools不再是标准过程。 如果你正在运行Python 2.7.9+或Python 3.4+ 恭喜你，你应该已经安装了pip 。 如果你不这样做，请继续阅读。 如果你正在运行一个类Unix系统 通常，您可以安装包pip通过你的包管理器，如果你的Python版本早于2.7.9或3.4，或者如果你的系统没有包括因任何
This is the error I get (mysite)zjm1126@zjm1126-G41MT-S2:~/zjm_test/mysite$ pip install mysql-python Downloading/unpacking mysql-python Downloading MySQL-python-1.2.3.tar.gz (70Kb): 70Kb downloaded Running setup.py egg_info for package mysql-python sh: mysql_config: not found Traceback (most recent call last): File "<string>", line 14, in <module> File "/home/
这是我得到的错误 (mysite)zjm1126@zjm1126-G41MT-S2:~/zjm_test/mysite$ pip install mysql-python Downloading/unpacking mysql-python Downloading MySQL-python-1.2.3.tar.gz (70Kb): 70Kb downloaded Running setup.py egg_info for package mysql-python sh: mysql_config: not found Traceback (most recent call last): File "<string>", line 14, in <module> File "/home/zjm1126