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How do I use itertools.groupby()?
...tor to iterate over each individual item in that group.
Here's a slightly different example with the same data, using a list comprehension:
for key, group in groupby(things, lambda x: x[0]):
listOfThings = " and ".join([thing[1] for thing in group])
print(key + "s: " + listOfThings + ".")
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How to convert an entire MySQL database characterset and collation to UTF-8?
...ablename CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;
Or if you're still on MySQL 5.5.2 or older which didn't support 4-byte UTF-8, use utf8 instead of utf8mb4:
ALTER DATABASE databasename CHARACTER SET utf8 COLLATE utf8_unicode_ci;
ALTER TABLE tablename CONVERT TO CHARACTER SET u...
云数据及Firebase组件简介 · App Inventor 2 中文网
...社区 反馈 我要反馈 var _hmt = _hmt || []; (function() { var hm = document.createElement("script"); hm.src = "https://hm.baidu.com/hm.js?8d287b854d737bdc880e8ddeac1b309d"; var s = document.getElementsByTagName("script")[0]; ...
App Inventor 2 中文网 · 项目指南
... .t_desc { color: #5e91a1; height: 60px; } App Inventor 2 入门教程 超实用入门App教程 ...
What is the difference between Int and Integer?
In Haskell, what is the difference between an Int and an Integer ? Where is the answer documented?
6 Answers
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Can enums be subclassed to add new elements?
...it - which defeats the point of an enum being a well-known set of values.
If you could tell us more about how you want to use this, we could potentially suggest alternative solutions.
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impro...
Semicolons superfluous at the end of a line in shell scripts?
...e are superfluous, since the newline is also a command separator. case specifically needs double semicolons at the end of the last command in each pattern block; see help case for details.
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i...
What is the difference between the OAuth Authorization Code and Implicit workflows? When to use each
...rity consideration of implicit flow is that access_code should have short life so it can't be used on server to server. OK, but the refresh token solve this problem. Why we should use an auth_code flow and request access_token by that on server to obtain access_code?
– Mohammad...
Argparse optional positional arguments?
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Use nargs='?' (or nargs='*' if you will need more than one dir)
parser.add_argument('dir', nargs='?', default=os.getcwd())
extended example:
>>> import os, argparse
>>> parser = argparse.ArgumentParser()
>>> parser.add_arg...
Split list into multiple lists with fixed number of elements
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I have a weird question. For the same case if i convert the data to a sequence, I get a Stream Object. Why is that?
– Rakshith
Jun 23 '16 at 10:26
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