Pythonic

https://www.python.org/dev/peps/pep-0008/

(1) Use 4 spaces per indentation level

foo=long_function_name(var_one, var_two,
var_three, var_four)

(2) Limit all lines to a maximum of 79 characters.

(3) 연산자 위치

# easy to match operators with operandsincome= (gross_wages+taxable_interest+ (dividends-qualified_dividends)
-ira_deduction-student_loan_interest)
# 연산자가 함께 내려간다.

(4) Avoid extraneous whitespace in the following situations:

불필요한 공백은 지양한다.

# Correct:spam(ham[1], {eggs: 2})
# Wrong:spam( ham[ 1 ], { eggs: 2 } )
# Correct:foo= (0,)
# Wrong:bar= (0, )
# Correct:ifx==4: printx, y; x, y=y, x# Wrong:ifx==4 : printx , y ; x , y=y , x# Correct:ham[1:9], ham[1:9:3], ham[:9:3], ham[1::3], ham[1:9:]
ham[lower:upper], ham[lower:upper:], ham[lower::step]
ham[lower+offset : upper+offset]
ham[: upper_fn(x) : step_fn(x)], ham[:: step_fn(x)]
ham[lower+offset : upper+offset]
# Wrong:ham[lower+offset:upper+offset]
ham[1: 9], ham[1 :9], ham[1:9 :3]
ham[lower : : upper]
ham[ : upper]
# Correct:spam(1)
# Wrong:spam (1)
# Correct:dct['key'] =lst[index]
# Wrong:dct ['key'] =lst [index]
# Correct:x=1y=2long_variable=3# Wrong:x=1y=2long_variable=3# = 의 양옆에 공백을 지양한다.# Correct:defcomplex(real, imag=0.0):
returnmagic(r=real, i=imag)
# Wrong:defcomplex(real, imag=0.0):
returnmagic(r=real, i=imag)

(5) 연산자의 경우 우선순위에 따라 공백이 이뤄진다.

# Correct:i=i+1submitted+=1x=x*2-1hypot2=x*x+y*yc= (a+b) * (a-b)
# Wrong:i=i+1submitted+=1x=x*2-1hypot2=x*x+y*yc= (a+b) * (a-b)

(6) 되도록이면 같은 라인에 작성하지 않는다.

# Correct:iffoo=='blah':
do_blah_thing()
do_one()
do_two()
do_three()

Rather not:

# Wrong:iffoo=='blah': do_blah_thing()
do_one(); do_two(); do_three()

(7) 함수/변수의 이름은 snake_case

(good) defpython_function_name(arg1, arg2):
(bad) defPythonFunctionName(arg1, arg2):
(bad) defpythonFunctionName(arg1, arg2):