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Parsing XML with namespace in Python via 'ElementTree'
...class io.StringIO, that refuses ASCII strings. I had tested my recipe with Python3. Adding the unicode string prefix 'u' to the sample string it works also with Python 2 (2.7).
– Davide Brunato
Feb 21 '17 at 8:23
...
Python Requests and persistent sessions
...oxy settings over subsequent calls to 'get' or 'post'.
It is tested with Python3.
Use it as a basis for your own code. The following snippets are release with GPL v3
import pickle
import datetime
import os
from urllib.parse import urlparse
import requests
class MyLoginSession:
"""
a...
How to determine the encoding of text?
...gs that live in the file source tree are available as the
python-magic (or python3-magic)
debian package. It can determine the encoding of a file by doing:
import magic
blob = open('unknown-file', 'rb').read()
m = magic.open(magic.MAGIC_MIME_ENCODING)
m.load()
encoding = m.buffer(blob) # "utf-8" ...
What's the difference between a Python module and a Python package?
...o other files under a. Start a Python 3.4 or later interpreter (e.g., with python3 -i) and examine the results of the following statements:
import a
a ⇒ <module 'a' (namespace)>
a.b ⇒ AttributeError: module 'a' has no attribute 'b'
import a.b.c
a.b ...
How do I check if a string is a number (float)?
...pam"
>>> b.isdigit()
False
String Methods - isdigit(): Python2, Python3
There's also something on Unicode strings, which I'm not too familiar with
Unicode - Is decimal/decimal
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Is there any way to kill a Thread?
...mprove the precision of the shell output.
(Only tested on Windows/Eclipse/Python3.3)
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Pip freeze vs. pip list
...ects/test1/Pipfile
Using /usr/local/Cellar/pipenv/2018.11.26_3/libexec/bin/python3.8 (3.8.1) to create virtualenv…
⠹ Creating virtual environment...
<SNIP>
Installing setuptools, pip, wheel...
done.
✔ Successfully created virtual environment!
<SNIP>
Now review & compare the o...
Best way to replace multiple characters in a string?
...
Here is a python3 method using str.translate and str.maketrans:
s = "abc&def#ghi"
print(s.translate(str.maketrans({'&': '\&', '#': '\#'})))
The printed string is abc\&def\#ghi.
...
iOS开发过程中的各种tips - 更多技术 - 清泛网 - 专注C/C++及内核技术
...直接在介绍AFNetworking的时候详解吧。
25.使用NSURLConnection下载数据
1. 创建对象
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"http://www.baidu.com"]];
[NSURLConnection connectionWithRequest:request delegate:self];
2. NSURLCon...
How can I filter lines on load in Pandas read_csv function?
...
If you are on linux you can use grep.
# to import either on Python2 or Python3
import pandas as pd
from time import time # not needed just for timing
try:
from StringIO import StringIO
except ImportError:
from io import StringIO
def zgrep_data(f, string):
'''grep multiple items f i...