什么是Python缓冲区类型？
bufferpython中有一个类型，但是我不知道如何使用它。 在Python文档中，描述为： buffer(object[, offset[, size]]) object参数必须是支持缓冲区调用接口的对象（例如字符串，数组和缓冲区）。将创建一个引用该对象参数的新缓冲区对象。缓冲区对象将从对象的开头（或指定的偏移量）开始是一个切片。切片将延伸到对象的末尾（或具有由size参数指定的长度）。
邮件的搜索结果
如何在Mac OS X上为Python 3安装pip？
OS X（Mavericks）已安装Python 2.7库存。但是我用3.3来做我自己的所有Python个人资料。我刚刚冲洗了3.3.2安装并安装了新的3.3.3。所以我需要pyserial再次安装。我可以按照以前做过的方式来做，即： 从pypi下载pyserial 解压pyserial.tgz cd pyserial python3 setup.py install 但是我想像酷孩子一样做，并且做类似的事情pip3 install pyserial。但目前尚不清楚我如何达到目标。就这一点。对virtualenv不感兴趣（除非必须如此）。
使用ctrl + c停止python
我有一个使用线程并发出大量HTTP请求的python脚本。我认为正在发生的事情是，在读取HTTP请求（使用urllib2）时，它正在阻塞并且没有响应CtrlC以停止程序。有没有办法解决？
为什么在Python中“ if not someobj：”优于“ if someobj == None：”？
我看过几个这样的代码示例： if not someobj: #do something 但我想知道为什么不这样做： if someobj == None: #do something 有什么区别吗？一个人比另一个人有优势吗？
python标准库中的装饰器（@deprecated）
我需要将例程标记为已弃用，但显然没有用于弃用的标准库装饰器。我知道它的配方和警告模块，但是我的问题是：为什么没有用于此（常见）任务的标准库装饰器？ 附加问题：标准库中是否有标准装饰器？
有关使用Google App Engine的反馈？[关闭]
按照目前的情况，这个问题不适合我们的问答形式。我们希望答案得到事实，参考或专业知识的支持，但是这个问题可能会引起辩论，参数，民意调查或扩展讨论。如果您认为此问题可以解决并且可以重新提出，请访问帮助中心以获取指导。 8年前关闭。 希望做一个非常小，快速而又肮脏的项目。我喜欢Google App Engine在Python上运行并内置Django的事实-给我借口尝试该平台…但是我的问题是： 除了玩具问题以外，还有人利用App Engine处理其他事情吗？我看到了一些很好的示例应用程序，因此我认为这对于真实交易来说已经足够了，但是我想获得一些反馈。 任何其他成功/失败记录都很棒。
如何分类我的爪子？
在我之前的问题中，我得到了一个很好的答案，可以帮助我检测出爪子在哪里压板，但是现在我很难将这些结果与相应的爪子联系起来： 我手动注释了爪子（RF =右前，RH =右后，LF =左前，LH =左后）。 正如您所看到的，显然有一个重复的模式，并且几乎在所有测量中都会返回。这是指向6条手动注释的试验的演示文稿的链接。 我最初的想法是使用启发式进行排序，例如： 前爪和后爪之间的负重比约为60-40％； 后爪的表面通常较小。 爪子（通常）在空间上分为左右两半。 但是，我对我的启发式方法有些怀疑，因为一旦遇到我从未想到的变化，它们就会对我失败。他们也将无法应付la狗的测量，la狗可能有自己的规则。 此外，乔建议的注释有时会弄乱，并且没有考虑到爪子的实际外观。 基于我对爪子内峰值检测问题的回答，我希望有更多高级解决方案可以对爪子进行分类。特别是因为每个单独的爪子的压力分布及其进程都不同，几乎就像指纹一样。我希望有一种方法可以用它来对我的爪子进行聚类，而不仅仅是按照发生的顺序对其进行排序。 因此，我正在寻找一种更好的方法来对结果和相应的爪进行排序。 对于要应对挑战的任何人，我都腌制了一个词典，其中包含所有包含每个爪的压力数据的切片切片（通过测量捆绑）以及描述其位置（切片在板上和时间上）的切片。 澄清一下：walk_sliced_data是一个字典，其中包含[‘ser_3’，’ser_2’，’sel_1’，’sel_2’，’ser_1’，’sel_3’]，这是测量的名称。每个度量都包含另一个字典[0、1、2、3、4、5、6、7、8、9、10]（来自“ sel_1”的示例），代表提取的影响。 还要注意，可以忽略“假”影响，例如对脚掌进行部分测量（在空间或时间上）。它们仅是有用的，因为它们可以帮助识别模式，但不会进行分析。 对于感兴趣的任何人，我都会保留一个博客，其中包含有关该项目的所有更新！
保存交互式Matplotlib图形
有没有一种方法可以保存Matplotlib图形，以便可以重新打开它并恢复典型的交互作用？（就像MATLAB中的.fig格式一样？） 我发现自己多次运行相同的脚本来生成这些交互式图形。或者我要向同事发送多个静态PNG文件，以显示绘图的不同方面。我宁愿发送图形对象，并让它们自己与之交互。
将base64中的字符串转换为图像并保存在Python中的文件系统中
我有一个base64格式的字符串，它表示PNG图像。有没有一种方法可以将该图像保存为PNG文件到文件系统？ 我使用flex对图像进行编码。其实这就是我在服务器上得到的（在任何建议的方法后都看不到任何图像:(） 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Python的“漂亮”持续集成
这是一个..徒劳的问题，但是BuildBot的输出并不是特别好看。 例如，相比 phpUnderControl 詹金斯 哈德森 CruiseControl.rb ..及其他，BuildBot看起来..古老 我目前正在与Hudson一起玩，但是它是非常以Java为中心的（尽管使用本指南，我发现它比BuildBot容易设置，并提供了更多信息） 基本上：是否有任何针对python的持续集成系统，它们会生成许多闪亮的图形等？ 更新：自从这次以来，Jenkins项目已将Hudson替换为软件包的社区版本。原始作者也已移至该项目。Jenkins现在是Ubuntu / Debian，RedHat / Fedora / CentOS等上的标准软件包。以下更新本质上仍然正确。詹金斯做到这一点的起点是不同的。 更新：尝试了几种选择之后，我认为我会坚持使用哈德森。完整性很好而且很简单，但是非常有限。我认为 Buildbot更适合拥有多个构建从属，而不是像我在使用它那样在一台机器上运行的所有东西。 将Hudson设置为Python项目非常简单： 从http://hudson-ci.org/下载Hudson 运行它 java -jar hudson.war 打开Web界面的默认地址为 http://localhost:8080 转到管理哈德森，插件，单击“更新”或类似内容 安装Git插件（我必须git在Hudson全局首选项中设置路径） 创建一个新项目，输入存储库，SCM轮询间隔等 如果尚未安装，请nosetests通过安装easy_install 在构建步骤中，添加 nosetests –with-xunit –verbose 选中“发布JUnit测试结果报告”并将“测试报告XML”设置为 **/nosetests.xml 这就是全部。您可以设置电子邮件通知，这些插件值得一看。我目前正在使用一些Python项目： SLOCCount插件可以计算代码行（并绘制图形！）-您需要单独安装sloccount 违反解析PyLint输出（您可以设置警告阈值，绘制每个构建中违反次数的图表） Cobertura可以解析coverage.py的输出。Nosetest可以在运行测试时使用收集覆盖范围nosetests –with-coverage（将输出写入**/coverage.xml）