Jupyter notebook

Module Package

• 모듈 : 변수와 함수, 클래스를 모아놓은 (.py) 확장자를 가진 파일
• 패키지 : 모듈의 기능을 디렉토리별로 정리해 놓은 개념

1. 모듈

• 모듈 생성
• 모듈 호출

%%writefile dss.py

num = 1234

def disp1(msg):
    print("disp1", msg)
    
def disp2(msg):
    print("disp2", msg)

class Calc:
    def plus(self, *args):
        return sum(args)

Writing dss.py

!ls

01_jupyter_notebook.ipynb
02_basic_syntax.ipynb
03_condition_loop.ipynb
04_function.ipynb
05_function_2.ipynb
06_class_1.ipynb
07_class_2.ipynb
08_module_package.ipynb
dss.py

%reset

Once deleted, variables cannot be recovered. Proceed (y/[n])? y

%whos

Interactive namespace is empty.

# 모듈 호출 : import
import dss

%whos

Variable   Type      Data/Info
------------------------------
dss        module    <module 'dss' from 'C:\\Code\\01_python\\dss.py'>

dss.num

1234

dss.disp1("python")

disp1 python

calc = dss.Calc()

calc.plus(1,2,3,4)

10

import random

random.randint(1, 5)

1

# 모듈 안에 특정 함수, 변수, 클래스 호출

from dss import num, disp2

%whos

Variable   Type        Data/Info
--------------------------------
calc       Calc        <dss.Calc object at 0x0000026C12554340>
disp2      function    <function disp2 at 0x0000026C12626670>
dss        module      <module 'dss' from 'C:\\Code\\01_python\\dss.py'>
num        int         1234
random     module      <module 'random' from 'C:<...>aconda3\\lib\\random.py'>

dss.num

1234

num

1234

%reset

Once deleted, variables cannot be recovered. Proceed (y/[n])? y

from dss import *

%whos

Variable   Type        Data/Info
--------------------------------
Calc       type        <class 'dss.Calc'>
disp1      function    <function disp1 at 0x0000026C12626940>
disp2      function    <function disp2 at 0x0000026C12626670>
num        int         1234

2. Package

• 패키지 생성
• 패키지 호출
• setup.py 패키지 설치 파일 만들기

# 디렉토리 생성

!mkdir -p school/dss

The syntax of the command is incorrect.

!mkdir -p school/web

The syntax of the command is incorrect.

• tree 설치 mac
  • homebrew : https://brew.sh/
  • homebrew : osx 패키지 설치 관리툴
  • ‘/bin/bash -c “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"'
  • brew install tree

!tree school

Folder PATH listing for volume Windows10
Volume serial number is E625-BBFB
C:\CODE\01_PYTHON\SCHOOL
├───dss
└───web

# 패키지 사용시 디렉토리에 __init__.py 파일을 추가
# python 3.3 버전 이상에서는 필요없음

!touch school/dss/__init__.py
!touch school/web/__init__.py

!tree school

Folder PATH listing for volume Windows10
Volume serial number is E625-BBFB
C:\CODE\01_PYTHON\SCHOOL
├───dss
└───web

%%writefile school/dss/data1.py

def plus(*args):
    print("data1")
    return sum(args)

Writing school/dss/data1.py

%%writefile school/dss/data2.py

def plus2(*args):
    print("data2")
    return sum(args)

Writing school/dss/data2.py

%%writefile school/web/url.py

def make(url):
    return url if url[:7] == "http://" else "http://" + url

Writing school/web/url.py

!tree school/

Folder PATH listing for volume Windows10
Volume serial number is E625-BBFB
C:\CODE\01_PYTHON\SCHOOL
├───dss
└───web

%reset

Once deleted, variables cannot be recovered. Proceed (y/[n])? y

import school.dss.data1

whos

Variable   Type      Data/Info
------------------------------
school     module    <module 'school' (namespace)>

school.dss.data1.plus(1,2,3)

data1





6

import school.dss.data1 as dss

dss.plus(1,2)

data1





3

# school.web : 디렉토리
# url : 모듈
from school.web import url

url.make("google.com")

'http://google.com'

url.make("naver.com")

'http://naver.com'

# 패키지의 위치 : 특정 디렉토리에 있는 패키지는 어디에서나 import 가능

import random

!ls

01_jupyter_notebook.ipynb
02_basic_syntax.ipynb
03_condition_loop.ipynb
04_function.ipynb
05_function_2.ipynb
06_class_1.ipynb
07_class_2.ipynb
08_module_package.ipynb
__pycache__
dss.py
school

import sys

for path in sys.path:
    print(path)

C:\Code\01_python
C:\Users\USER\anaconda3\python38.zip
C:\Users\USER\anaconda3\DLLs
C:\Users\USER\anaconda3\lib
C:\Users\USER\anaconda3

C:\Users\USER\anaconda3\lib\site-packages
C:\Users\USER\anaconda3\lib\site-packages\win32
C:\Users\USER\anaconda3\lib\site-packages\win32\lib
C:\Users\USER\anaconda3\lib\site-packages\Pythonwin
C:\Users\USER\anaconda3\lib\site-packages\IPython\extensions
C:\Users\USER\.ipython

packages = !ls C:\Users\USER\anaconda3\lib
len(packages)

207

packages[-5:]

['xml', 'xmlrpc', 'zipapp.py', 'zipfile.py', 'zipimport.py']

# setup.py 를 작성해서 패키지를 설치해서 사용
# setuptools를 이용

!tree school/

Folder PATH listing for volume Windows10
Volume serial number is E625-BBFB
C:\CODE\01_PYTHON\SCHOOL
├───dss
│   └───__pycache__
└───web
    └───__pycache__

%%writefile school/dss/__init__.py

__all__ = ["data1", "data2"]

Overwriting school/dss/__init__.py

%%writefile school/setup.py

from setuptools import setup, find_packages

setup(
    nume="dss",
    packages=find_packages(),
    include_package_data=True,
    version="0.0.1",
    author_email="manimahn12@gmail.com"
    zip_safe=False
)

Overwriting school/setup.py

!rm dss.py

# 패키지 설치 확인

!pip list | grep dss # dss가 들어간 패키지 확인

grep: #: No such file or directory
grep: dss媛�: No such file or directory
grep: �뱾�뼱媛�: No such file or directory
grep: �뙣�궎吏�: No such file or directory
grep: �솗�씤: No such file or directory
ERROR: Pipe to stdout was broken
Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='cp949'>
OSError: [Errno 22] Invalid argument

# 패키지 설치
# school $ python setup.py develop
# 커널 리스타트
# develop : 개발자모드, 코드를 수정하면 설치된 패키지도 같이 수정
# build : 일반모드, 코드를 수정하면 다시 설치해야 수정된 코드가 적용

!pip list | grep dss

!pip list | grep numpy

numpy                              1.19.2
numpydoc                           1.1.0

from dss import *

%whos

Variable   Type      Data/Info
------------------------------
dss        module    <module 'school.dss.data1<...>\\school\\dss\\data1.py'>
np         module    <module 'numpy' from 'C:\<...>ges\\numpy\\__init__.py'>
packages   SList     ['__future__.py', '__phel<...>file.py', 'zipimport.py']
path       str       C:\Users\USER\.ipython
random     module    <module 'random' from 'C:<...>aconda3\\lib\\random.py'>
school     module    <module 'school' (namespace)>
sys        module    <module 'sys' (built-in)>
url        module    <module 'school.web.url' <...>on\\school\\web\\url.py'>

data1.plus(1,2)

---------------------------------------------------------------------------

NameError                                 Traceback (most recent call last)

<ipython-input-64-572e254ac59d> in <module>
----> 1 data1.plus(1,2)


NameError: name 'data1' is not defined

# uninstall
# pip uninstall dss

!pip list | grep dss