CMD (명령프롬프트) 실행
C:\Users\purplike>cd PycharmProjects\JumpToPython\05-2 Modules
C:\Users\purplike\PycharmProjects\JumpToPython\05-2 Modules>dir
C 드라이브의 볼륨에는 이름이 없습니다.
볼륨 일련 번호: 2A90-D080
C:\Users\purplike\PycharmProjects\JumpToPython\05-2 Modules 디렉터리
2020-04-23 오후 04:24 <DIR> .
2020-04-23 오후 04:24 <DIR> ..
2020-04-23 오후 04:05 32 mod1.py
2020-04-23 오후 04:24 869 mod1_import.py
2개 파일 901 바이트
2개 디렉터리 61,615,767,552 바이트 남음
C:\Users\purplike\PycharmProjects\JumpToPython\05-2 Modules>python
Python 3.7.6 (tags/v3.7.6:43364a7ae0, Dec 19 2019, 00:42:30) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import mod1
>>> print(mod1.add(3, 4)
... )
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: module 'mod1' has no attribute 'add'
>>> import mod1
>>> print(mod1.add(3, 4))
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: module 'mod1' has no attribute 'add'
>>> import mod1
>>> print(mod1.sum(3, 4))
7
>>>
05-3 패키지
패키지(Packages)는 도트(.)를 이용하여 파이썬 모듈을 계층적(디렉터리 구조)으로 관리할 수 있게 해준다.
패키지 구조로 모듈을 만들면 다른 모듈과 이름이 겹치더라도 더 안전하게 사용할 수 있다.
C:\Users\purplike\PycharmProjects\JumpToPython\05-3 Packages>python
Python 3.7.6 (tags/v3.7.6:43364a7ae0, Dec 19 2019, 00:42:30) [MSC v.1916 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> import game.sound.echo
>>> game.sound.echo.echo_test()
echo
>>>
04 예외 처리
'''
try:
except:
'''
'''
print(4/0)
Traceback (most recent call last):
File "C:/Users/Maria/PycharmProjects/JumpToPython/05-4 Exceptions/try_except.py", line 7, in <module>
print(4/0)
ZeroDivisionError: division by zero
'''
try:
print(4/0)
except:
print('except')
try:
print(4 / 0)
except ZeroDivisionError as e:
print(e) # division by zero
try:
print(4 / 1) # 4.0
except ZeroDivisionError as e:
print(e) # division by zero
else:
print('else')
try:
with open('filenotfounderrr.txt', 'r') as f:
read = f.read()
except FileNotFoundError as e:
#print(str(e))
print(e)
else:
read = f.read()
# [Errno 2] No such file or directory: 'filenotfounderrr.txt'
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