วันที่ 20 — ตัวจัดการแพ็กเกจ (Package Manager)

pip --version

asabeneh@Asabeneh:~$ pip install pip

pip install numpy

import numpy
print(numpy.version.version)
print(numpy.pi)

pip install pandas

import pandas
print(pandas.__version__)

import webbrowser # web browser module to open websites

# list of urls: python
url_lists = [
    'http://www.python.org',
    'https://www.linkedin.com/in/asabeneh/',
    'https://github.com/Asabeneh',
    'https://twitter.com/Asabeneh',
]

# opens the above list of websites in a different tab
for url in url_lists:
    webbrowser.open_new_tab(url)

pip uninstall packagename

pip list

pip show packagename
# pip show numpy
# Name: numpy
# Version: 1.13.1
# Summary: NumPy: array processing for numbers, strings, records, and objects.
# Home-page: http://www.numpy.org
# Author: NumPy Developers
# Author-email: numpy-discussion@python.org
# License: BSD
# Location: /usr/local/lib/python3.6/dist-packages
# Requires:
# Required-by: matplotlib, pandas, scikit-learn, scipy

pip freeze
# asn1crypto==1.4.0
# beautifulsoup4==4.9.3
# ...

# เซฟลงไฟล์
pip freeze > requirements.txt

# ติดตั้งจาก requirements.txt
pip install -r requirements.txt

pip install requests

import requests # importing requests module

url = 'https://restcountries.com/v3.1/all'  # countries api
response = requests.get(url)  # opening a url
print(response.status_code)  # status code, success: 200
countries = response.json()
print(type(countries))
print(countries[:1])  # first country

import requests
url = 'https://api.github.com/users/asabeneh'  # github api
response = requests.get(url)
print(response.status_code)  # status code
print(response.headers)      # headers
print(response.text)         # response text (string)
print(response.json())       # response as dict

# arithmetic.py
def add_numbers(num1, num2):
    return num1 + num2


def subtract_numbers(num1, num2):
    return num1 - num2


def multiply_numbers(num1, num2):
    return num1 * num2


def division(num1, num2):
    return num1 / num2

# greet.py
def greet_person(firstname, lastname):
    return f'{firstname} {lastname}, welcome to 30DaysOfPython Challenge!'

# __init__.py
from mypackage.arithmetic import add_numbers, subtract_numbers, multiply_numbers, division
from mypackage.greet import greet_person

from mypackage import add_numbers, subtract_numbers, multiply_numbers, division, greet_person
print(add_numbers(1, 2))        # 3
print(subtract_numbers(2, 1))   # 1
print(multiply_numbers(9, 9))   # 81
print(division(1, 2))           # 0.5
print(greet_person('Asabeneh', 'Yetayeh'))