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Uber5岁了，一次性告诉你它的商业之道 - 资讯 - 清泛网 - 专注C/C++及内核技术
...，与同学合伙创办了Sour网站，这是一个提供流媒体交换下载的服务平台，网友之间可以交换音乐和电影视频。
或许只是偶然，这个网站从一诞生就触犯了美国版权保护法。1999年，Sour被30多家音乐、影视出版巨头联合起诉，索...
Open files in 'rt' and 'wt' modes
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Gotcha, it's documented in python3 docs. So, there is basically no difference between wt vs w and rt vs r - just explicit is better than implicit?
– alecxe
Apr 14 '14 at 2:38
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Difference between os.getenv and os.environ.get
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In addition to the answers above:
$ python3 -m timeit -s 'import os' 'os.environ.get("TERM_PROGRAM")'
200000 loops, best of 5: 1.65 usec per loop
$ python3 -m timeit -s 'import os' 'os.getenv("TERM_PROGRAM")'
200000 loops, best of 5: 1.83 usec per loop
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Python how to write to a binary file?
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You must mean < 128. As python3 complains: UnicodeEncodeError: 'ascii' codec can't encode character '\x89' in position 0: ordinal not in range(128)
– elig
Oct 7 '18 at 13:18
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Combine --user with --prefix error with setup.py install
...no prefix args required.
This is better anyway because it will default to python3 if your pip is configured to use Python 3.
(I forgot to enter python3 setup.py and it installed a 3-only package under 2.7)
(credit https://stackoverflow.com/a/1550235/4364036)
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A non-blocking read on a subprocess.PIPE in Python
...tocol and its methods are called as soon as data is ready:
#!/usr/bin/env python3
import asyncio
import os
class SubprocessProtocol(asyncio.SubprocessProtocol):
def pipe_data_received(self, fd, data):
if fd == 1: # got stdout data (bytes)
print(data)
def connection_los...
App Inventor 2 中文网 · 项目指南
...帮助”菜单 -> AI伴侣信息，直接手机扫码安装到手机 或 下载AI伴侣到电脑并拖动到商业模拟器安装。 注：手机和电脑必须在同一局域网内，原理是电脑端启动WEB服务器，手机AI伴侣与WEB通信；电脑连手机热...
Pass a parameter to a fixture function
... cygwin -- Python 3.6.8, pytest-5.3.1, py-1.8.0, pluggy-0.13.1 -- /usr/bin/python3
cachedir: .pytest_cache
rootdir: .
collected 2 items
test_parameterized_fixture.py::TestIt::test_tc1[True] PASSED ...
What's the canonical way to check for type in Python?
... These are python2 answers. For example, there is no basestring in python3.
– dfrankow
Mar 24 '17 at 13:54
4
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How to validate IP address in Python? [duplicate]
... last):
File "<stdin>", line 1, in <module>
File "/usr/lib/python3.3/ipaddress.py", line 54, in ip_address
address)
ValueError: '277.0.0.1' does not appear to be an IPv4 or IPv6 address
>>> ipaddress.ip_address('foobar')
Traceback (most recent call last):
File "<std...