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Artificially create a connection timeout error
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This won't always work. For instance, with Python's urllib, this will return a 'No route to host' exception. FYI
– Mike Shultz
Feb 22 '13 at 22:35
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How to upload a file in Django? [closed]
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8. Initialize
Just run syncdb and runserver.
> cd myproject
> python manage.py syncdb
> python manage.py runserver
Results
Finally, everything is ready. On default Django developement environment the list of uploaded documents can be seen at localhost:8000/list/. Today the files a...
Plotting time in Python with Matplotlib
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You must first convert your timestamps to Python datetime objects (use datetime.strptime). Then use date2num to convert the dates to matplotlib format.
Plot the dates and values using plot_date:
dates = matplotlib.dates.date2num(list_of_datetimes)
matplotlib.pyplot...
C# Xml中SelectSingleNode方法中的xpath用法（Xml节点操作最佳方式） - 更...
...返回单个节点可使用SelectSingleNode方法，该方法如果查询到一个或多个节点，返回第一个节点；如果没有查询的任何节点返回 Nothing。例如：
objNode = objNode.SelectSingleNode("/Company/Department/Employees/Employee")
if (objNode == null)
// - Do p...
How to create major and minor gridlines with different linestyles in Python
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Passing a dictionary to a function as keyword parameters
I'd like to call a function in python using a dictionary.
4 Answers
4
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财务计算器拓展：复利计算、平均值、中位数、众数、方差计算 - App Invento...
...此扩展让您能够执行广泛的财务计算，从简单利息和复利到净现值和投资回报率。它还使您能够进行基本的统计计算，包括计算平均值、中位数、众数、方差等。无论您是在创建个人财务应用程序还是数据分析工具，此扩展都是...
adding noise to a signal in python
...nt to add some random noise to some 100 bin signal that I am simulating in Python - to make it more realistic.
7 Answers
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Python pandas Filtering out nan from a data selection of a column of strings
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How can I convert an RGB image into grayscale in Python?
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@BluePython: LA mode has luminosity (brightness) and alpha. If you use LA mode, then greyscale.png will be an RGBA image with the alpha channel of image.png preserved. If you use L mode, then greyscale.png will be an RGB image (wi...