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Running unittest with typical test directory structure
...import antigravity, as well. I have both __init_.py files and I am calling python3 -m unittest discover from the new project directory. What else could be wrong?
– imrek
May 2 '17 at 20:11
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深入理解 x86/x64 的中断体系 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术
... ISR 能正常工作了，我提供了完整的示例源码和磁盘映像下载：interrupt_demo
2. 保护模式下的中断机制
引入保护模式后，情形变得复杂多了，实施了权限控制机制，为了支持权限的控制增添了几个重要的数据结构，下面是与中...
Iterating Over Dictionary Key Values Corresponding to List in Python
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dict.iteritems() was removed since Python3. You should use dict.items() instead
– Sergey
Jan 21 '16 at 8:48
14
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Asynchronous Requests with Python requests
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As of now this is not python3-capable (gevent fails to build v2.6 on py3.4).
– saarp
Aug 4 '14 at 20:43
1
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What does a b prefix before a python string mean?
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This is Python3 bytes literal. This prefix is absent in Python 2.5 and older (it is equivalent to a plain string of 2.x, while plain string of 3.x is equivalent to a literal with u prefix in 2.x). In Python 2.6+ it is equivalent to a...
How to write DataFrame to postgres table?
...ssuming dataframe to be present already as df
output = io.BytesIO() # For Python3 use StringIO
df.to_csv(output, sep='\t', header=True, index=False)
output.seek(0) # Required for rewinding the String object
copy_query = "COPY mem_info FROM STDOUT csv DELIMITER '\t' NULL '' ESCAPE '\\' HEADER " # ...
Custom Python list sorting
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In python3 you can write:
from functools import cmp_to_key
def cmp_items(a, b):
if a.foo > b.foo:
return 1
elif a.foo == b.foo:
return 0
else:
return -1
alist = sorted(alist, key=cmp_to_...
Python argparse command line flags without arguments
...nt("-f","--flag",action="store_true",help="just a flag argument")
usage
$ python3 script.py -f
After parsing when checked with args.f it returns true,
args = parser.parse_args()
print(args.f)
>>>true
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How can you profile a Python script?
...file dumps, RunSnakeRun hasn't been updated since 2011 and doesn't support python3. You should use snakeviz instead
– Giacomo Tecya Pigani
Dec 11 '17 at 9:48
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Any way to properly pretty-print ordered dictionaries?
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@AlxVallejo You might be using python3. Please check
– CHINTAN VADGAMA
Sep 23 '19 at 23:32
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