[Python] 기본 문법 정리

※ Goal.

1. 파이썬 기본 문법 정리 (참조. Python for Data Analysis)

2. 파이썬 윈도우 개발환경

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■ 윈도우 개발환경 구축

- 참고 : http://www.lucypark.kr/courses/tips/introduction-to-python.html#installing-python

- Anaconda 설치 : http://continuum.io/downloads#py34

■ 기본 문법 정리

 
'''
Created on 2015. 7. 11.

@author: sbahn
'''
 
if __name__ == '__main__':
    pass
 
range_test = range(10)
print(range_test)
 
rangelist_test = list(range(10))
print(rangelist_test)
 
""" Tuple : one-dimensional, fixed-length, immutable sequence of objects """
 
# basic
tup = 4,5,5,6,5
print(tup)
print(tup.count(5))
 
nested_tup = (4,5,6), (7,8)
print(nested_tup[1])
 
 
# converting
tup = tuple([1,2,3])
print(tup)
 
tup = tuple('string')
print(tup[3])
 
# concat
tup = (4, None, 'foo') + (6, 0) + ('bar',)
print(tup)
 
tup = ('foor', 'bar') * 4
print(tup)
 
# unpacking
tup = (4,5,6)
a,b,c = tup
print(a,b,c)
 
 
 
""" list : variable-length & conetnts can be modified """
# append
 
# insert
 
# pop
 
# remove
 
# concat, combine
 
# sorting
 
# binary search (bisect)
 
import bisect
c = [1, 2, 3, 2, 4, 5, 6]
print(bisect.bisect(c, 3))
 
# slicing
seq = [7, 2, 3, 7, 5, 6, 0, 1]
print(seq)
print(seq[1:5])
print(seq[::2])
print(seq[::-1])
 
""" built-in sequence function """
# enum
 
# sorted
 
# zip
 
# reversed
 
""" Dict (hash map, associative array) : Flexibly-sized collection of key-value pairs"""
empty_dict = {'a' : 'some value', 'b' : [1,2,3,4]}
print(empty_dict)
 
 
""" Set : unordered collection of unique elements """
 
 
""" List, Set, Dict Comprehensions """
 
 
""" Functions """
def my_function(x, y, z=1.5):
    if z > 1:
        return z * (x + y)
    else:
        return z / (x + y)
    
print(my_function(1,2))
 
 
# Namespaces, Scope, and Local Functions
 
# Returning Multiple Values
 
# Functions Are Objects
 
# Anonymous (lambda) Functions
 
# Closures: Functions that Return Functions
 
# Extencded Call Syntax with *args, **kwargs
 
# Currying: Partial Argument Application
def add_numbers(x, y):
    return x + y
 
add_five = lambda y: add_numbers(5, y)
print("lamba currying : " + str(add_five(4)))
 
# Generators
 
""" Files and the Operation system """