Python标签存档

问题：

我有一些base64编码的数据,即使其中存在填充错误,我也想将其转换回二进制。 如果我用

base64.decodestring(b64_string)

会引发“填充错误”错误。 还有另一种方法吗?

更新:感谢您的所有反馈。 老实说,提到的所有方法听起来都有些失败,所以我决定尝试使用openssl。 以下命令可以有效地解决问题:

openssl enc -d -base64 -in b64string -out binary_data

I have some data that is base64 encoded that I want to convert back to binary even if there is a padding error in it.If I useit raises an ‘Incorrect padding’ error.Is there another way?UPDATE: Thanks for all the feedback.To be honest, all the methods mentioned sounded a bit hit and miss so I decided to try openssl.The following command worked a treat:

问题：

我试图安装Python包,这是我最近获得的一个系统。 我试图利用Python相对较新的每用户站点包目录和新选项--user 。 (该选项目前没有记录 ,但它存在于Python 2.6+;您可以通过运行python setup.py install --help来查看帮助。)

当我试着跑步时

python setup.py install --user

在我下载的任何软件包上,我总是遇到以下错误:

error: can't combine user with with prefix/exec_prefix/home or install_(plat)base

该错误非常令人困惑,因为正如您所看到的,我没有提供--prefix , – --exec-prefix , – --install-base或--install-platbase标志作为命令行选项。 我浪费了很多时间试图找出问题所在。 我在下面记录了我的答案,希望能让其他一些可怜的灵魂在几个小时的牦牛皮上刮胡子 。

I was trying to install Python packages a system I recently gained access to.I was trying to take advantage of Python’s relatively new per user site-packages directory , and the new option --user .(The option is currently undocumented , however it exists for Python 2.6+; you can see the help by running python setup.py install --help .)When I tried runningon any package I downloaded, I always got the following error:The error was extremely perplexing because, as you can see, I wasn’t providing the --prefix , --exec-prefix , --install-base , or --install-platbase flags as command line options.I wasted a lot of time trying to figure out what the problem was.I document my answer below, in hopes to spare some other poor soul a few hours of yak shaving .

问题：

我似乎突然开始遇到错误error: option --single-version-externally-managed not recognized在pip install varions包(包括PyObjC和astropy )时, error: option --single-version-externally-managed not recognized单个error: option --single-version-externally-managed not recognized 。 我之前从未见过这个错误,但它现在也出现在travis-ci版本中,没有任何改变。

此错误是否表示过期分发? 或者在setup.py有一些错误指定的选项? 或完全不同的东西?

I seem to have suddenly started encounter the error error: option --single-version-externally-managed not recognized when pip install ing varions packages (including PyObjC and astropy ).I’ve never seen this error before, but it’s now also showing up on travis-ci builds for which nothing has changed.Does this error indicate an out of date distribute?Or some incorrectly specified option in setup.py ?Or something else entirely?

问题：

我有一个boto3客户:

boto3.client('kms')

但是它发生在新机器上,它们动态地打开和关闭。

    if endpoint is None:
        if region_name is None:
            # Raise a more specific error message that will give
            # better guidance to the user what needs to happen.
            raise NoRegionError()

为什么会这样呢? 为什么只有部分时间呢?

I have a boto3 client :But it happens on new machines, They open and close dynamically.Why is this happening?and why only part of the time?

问题：

我正在使用sklearn,并且亲和力传播存在问题。 我建立了一个输入矩阵,但不断收到以下错误。

ValueError: Input contains NaN, infinity or a value too large for dtype('float64').

我跑了

np.isnan(mat.any()) #and gets False
np.isfinite(mat.all()) #and gets True

我尝试使用

mat[np.isfinite(mat) == True] = 0

删除无限值,但这也不起作用。 我该怎么做才能摆脱矩阵中的无限值,以便可以使用亲和力传播算法?

我正在使用anaconda和python 2.7.9。

I am using sklearn and having a problem with the affinity propagation.I have built an input matrix and I keep getting the following error.I have runI tried usingto remove the infinite values but this did not work either.What can I do to get rid of the infinite values in my matrix, so that I can use the affinity propagation algorithm?I am using anaconda and python 2.7.9.