jslee

• pip : http://www.pip-installer.org/en/latest/index.html
• virtualenv : http://www.virtualenv.org/en/latest/index.html
• Fabric :http://docs.fabfile.org/en/1.3.3/index.html

衍伸:

• virtualenvWrapper : http://www.doughellmann.com/docs/virtualenvwrapper/
• setuptools : http://pypi.python.org/pypi/setuptools

相對於 ruby:

• RVM
• Bundler
• Capistrano

試以python實作以下C語言

for (i=0; i < mylist_length; i++) {
 
   do_something(mylist[i]);
 
}

新手python會這樣子寫:

i = 0
 
while i < mylist_length:
 
   do_something(mylist[i])
 
   i += 1

稍微中手會這樣子寫:

for i in range(mylist_length):
   do_something(mylist[i])

真正了解Pythonnic 會這樣子寫:

for element in mylist:
   do_something(element)

另一個例子
C:

void foo(int* a, float* b) {
 
    *a = 3;
    *b = 5.5;
 
}
 
int alpha;
int beta;
foo(&alpha, &beta);

python:
What the hell!!?

def foo(a, b):
    a[0] = 3
    b[0] = 5.5
 
alpha = [0]
beta = [0]
foo(alpha, beta)
alpha = alpha[0]
beta = beta[0]

正解!

def foo():
    return 3, 5.5
 
alpha, beta = foo()

在python 當你

import this

就會出現python的禪道

The Zen of Python, by Tim Peters

Beautiful is better than ugly.
Explicit is better than implicit.
Simple is better than complex.
Complex is better than complicated.
Flat is better than nested.
Sparse is better than dense.
Readability counts.
Special cases aren’t special enough to break the rules.
Although practicality beats purity.
Errors should never pass silently.
Unless explicitly silenced.
In the face of ambiguity, refuse the temptation to guess.
There should be one– and preferably only one –obvious way to do it.
Although that way may not be obvious at first unless you’re Dutch.
Now is better than never.
Although never is often better than *right* now.
If the implementation is hard to explain, it’s a bad idea.
If the implementation is easy to explain, it may be a good idea.
Namespaces are one honking great idea — let’s do more of those!

–

還滿有趣的

以下為中譯
from: http://wiki.python.org.tw/The%20Zen%20Of%20Python

美麗優於醜陋，明講好過暗諭。

簡潔者為上，複雜者次之，繁澀者為下。

平舖善於層疊，勻散勝過稠密；以致輕鬆易讀。

特例難免但不可打破原則，務求純淨卻不可不切實際。

斷勿使錯誤靜靜流逝，除非有意如此。

在模擬兩可之間，拒絕猜測的誘惑。

總會有一種明確的寫法，最好也只有一種，

但或須細想方可得。

凡事雖應三思後行，但坐而言不如起而行。

難以解釋的實作方式，必定是壞方法。

容易解釋的實作方式，可能是好主意。

命名空間讚，吾人多實用。