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ipython_良いところmemo

Posted at

python を使う上で、ipythonで使うと良いところみたなのを調べてみた

print表示より綺麗に表示される

In [11]: print data
{0: 0.49613688816136836, 1: 0.7609762428923907, 2: 0.5700416376550185, 3: 0.175291194455094, 4: 0.41368352630708494, 5: 0.5873027452343913, 6: 0.09669836847661195}

In [12]: data
Out[12]:
{0: 0.49613688816136836,
 1: 0.7609762428923907,
 2: 0.5700416376550185,
 3: 0.175291194455094,
 4: 0.41368352630708494,
 5: 0.5873027452343913,
 6: 0.09669836847661195}

タブ補完でlinaxのように使える

In [13]: an_apple =27

In [14]: an
an_apple  and       any

イントロスペクション(?でそのデータの情報を見ることができる)


In [9]: b=[1,2,3]

In [10]: b?
Type:        list
String form: [1, 2, 3]
Length:      3
Docstring:
list() -> new empty list
list(iterable) -> new list initialized from iterable's items

# ??をつけるとその関数のソースコードがみれる

In [14]: def add_numbers(a,b):
   ....:     return a+b
   ....:

In [18]: add_numbers??
Type:        function
String form: <function add_numbers at 0x1077a32a8>
File:        /Users/ykitagaw/<ipython-input-14-a9946ee651b1>
Definition:  add_numbers(a, b)
Source:
def add_numbers(a,b):
    return a+b

%runコマンド

%run test.py

runの後にファイル名を渡す。値もそのまま使える

%paste、、、コピペでコードを貼る

# 事前にコピーしておいてから
In [19]: %paste
for num in [4, 3, 12]:
  print "num = " + str(num)

## -- End pasted text --
num = 4
num = 3
num = 12

# 自分で貼り付けるやり方もある
In [21]: %cpaste
Pasting code; enter '--' alone on the line to stop or use Ctrl-D.
:for num in [4, 3, 12]:
:  print "num = " + str(num)
:<EOF>
num = 4
num = 3
num = 12
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