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PHP大潮将至 PHP近年发展分析 - 创意 - 清泛网 - 专注C/C++及内核技术
PHP大潮将至 PHP近年发展分析作者通过自己对PHP近年发展的分析，认为PHP凭借它的简单、开发快速和扩展性强，在企业级应用上会有大的发展前景。您觉得呢？说起PHP近几年的发展，可以说是突飞猛进。EDC在2006年的统计信息表明P...
Escape quotes in JavaScript
... in the HTML context. You need to replace the double-quote with the proper XML entity representation, ".
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Pythonic way to combine FOR loop and IF statement
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I really miss in python being able to say for x in xyz if x:
– bgusach
Sep 10 '14 at 8:06
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How do I execute a string containing Python code in Python?
How do I execute a string containing Python code in Python?
14 Answers
14
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How to extract the n-th elements from a list of tuples?
... *list in arguments to create a parameter list for a function...
Note: In Python3, zip returns an iterator, so instead use list(zip(*elements)) to return a list of tuples.
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Change drawable color programmatically
...t work like a charm! Thanks a lot! Note: It also works for when you have a xml drawable in your imageView/AppCompatImageView
– Sjd
Sep 15 '17 at 13:10
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CSV in Python adding an extra carriage return, on Windows
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Python 3:
As described by YiboYang, set newline=''
with open('output.csv', 'w', newline='') as f:
writer = csv.writer(f)
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As noted in the comments by CoDEmanX, set newline='\n'
with open('output.csv', 'w',...
How can I break up this long line in Python?
...be joined to a second.")
Explicit is better than implicit, as the zen of python says, but this creates three strings instead of one, and uses twice as much memory: there are the two you have written, plus one which is the two of them joined together, so you have to know when to ignore the zen. Th...
hexadecimal string to byte array in python
...thing like
>>> hex_string = "deadbeef"
Convert it to a string (Python ≤ 2.7):
>>> hex_data = hex_string.decode("hex")
>>> hex_data
"\xde\xad\xbe\xef"
or since Python 2.7 and Python 3.0:
>>> bytes.fromhex(hex_string) # Python ≥ 3
b'\xde\xad\xbe\xef'
&g...
Items in JSON object are out of order using “json.dumps”?
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Both Python dict (before Python 3.7) and JSON object are unordered collections. You could pass sort_keys parameter, to sort the keys:
>>> import json
>>> json.dumps({'a': 1, 'b': 2})
'{"b": 2, "a": 1}'
>>&...