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How can I increment a char?
...ord('c') + 1
100
>>> chr(ord('c') + 1)
'd'
>>>
Python 3.x makes this more organized and interesting, due to its clear distinction between bytes and unicode. By default, a "string" is unicode, so the above works (ord receives Unicode chars and chr produces them).
But if you're i...
How do I draw a grid onto a plot in Python?
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223
You want to use pyplot.grid:
x = numpy.arange(0, 1, 0.05)
y = numpy.power(x, 2)
fig = plt.figu...
开源MQTT网关：EMQX vs Mosquitto - 创客硬件开发 - 清泛IT社区，为创新赋能！
...产品。Mosquitto 简介Mosquitto 项目最初由 IBM 和 Eurotech 于 2013 年开发，后来于 2016 年捐赠给 Eclipse 基金会。Eclipse Mosquitto 基于 Eclipse 公共许可证(EPL/EDL license)发布，用户可以免费使用。作为全球使用最广的 MQTT 协议实现之一 ，截至 ...
How to open a Bootstrap modal window using jQuery?
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Python timedelta in years
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Your best bet is to use the dateutil.relativedelta object, but that's a 3rd party module. If you want to know the datetime that was n years from some date (defaulting to right now), you can do the following::
from dateutil.relativedelta import relativedelta
def yearsago(years, from_date=None):...
Create a GUID in Java
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Have a look at the UUID class bundled with Java 5 and later.
For example:
If you want a ra...
What is the relationship between the docker host OS and the container base image OS?
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MySQL ON DUPLICATE KEY UPDATE for multiple rows insert in single query
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Mocking objects with Moq when constructor has parameters
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The last line is giving you a real instance because you are using the new keyword, not mocking ...
The tilde operator in Python
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edited Apr 23 '12 at 22:55
answered Nov 29 '11 at 3:02
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