Python 3 vs Python 2 All In One

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Python 3 vs Python 2 All In One

Python 3.x 与 Python 2.x 版本区别

https://www.runoob.com/python/python-2x-3x.html

https://www.datacamp.com/blog/python-2-vs-3-everything-you-need-to-know

print vs print()

如果 Python 2.x 版本想使用使用 Python 3.x 的 print 函数，可以导入 __future__ 包;
该包禁用 Python 2.x 的 print 语句，采用 Python 3.x 的 print() 函数：

ASCII vs Unicode

xrange vs range()

demos

$ python3 --version
# Python 3.7.3
$ which python 3
# /usr/bin/python3

$ python3 ./led.py 7

$ python --version
# Python 2.7.16
$ which python
# /usr/bin/python

$ python ./led.py 7

refs

Python errors All In One

https://www.cnblogs.com/xgqfrms/p/17269990.html

Python 2.x

https://www.runoob.com/python/python-tutorial.html

Python 3.x

https://www.runoob.com/python3/python3-tutorial.html

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