![Python
NGUYEN
Hong Thinh
10/16
M t s ch炭 箪 v i Jupyter
C叩c cell u h tr s d ng Tab auto complete (g i 箪
l nh, bi n ..)
Khi mu n th c hi n 1 l nh tr棚n cmd /terminal tr棚n cell
h達y s d ng ph鱈a tr動 c l nh c n th c hi n
1 !pip install keras
2
C叩c o n cell ch y kh担ng theo th t tr棚n/d動 i c a Cell,
m theo vi c ta ch n cell v k鱈ch run. Th t 坦 動 c
l動u l i ID-number c a Cell trong [ ]](https://image.slidesharecdn.com/slide0intro-191121030917/85/introdution-to-Python-11-320.jpg)
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introdution to Python
- 1. Python NGUYEN Hong Thinh 1/16 Introduction to Python NGUYEN Hong Thinh FET-UET-VNU Ngy 11 th叩ng 8 nm 2019
- 2. Python NGUYEN Hong Thinh 2/16 S董 l動 c v Python 動 c t o ra nh ng nm 90 b i Guido van Rossum L m t ph n m m mi n ph鱈, ph叩t tri n b i c c ng ng L ng担n ng h動 ng i t動 ng, b c cao, module ho叩. T c ph c p v m c ph bi n nh t hi n nay
- 3. Python NGUYEN Hong Thinh 3/16 Python l 1 Ng担n ng l p tr狸nh b c cao Machine code: Python: 1 print("hello") 2
- 4. Python NGUYEN Hong Thinh 4/16 Python l ng担n ng module ho叩 1-C坦 r t nh u th動 vi n (th動 vi n chu n, th動 vi n ph叩t tri n b i c叩 nh但n, t ch c ho c c c ng ng) 2-C叩ch s d ng 董n gi n 1 import numpy 2 import os 3 import dlib 4 import tensoflow 5
- 5. Python NGUYEN Hong Thinh 4/16 Python l ng担n ng module ho叩 1-C坦 r t nh u th動 vi n (th動 vi n chu n, th動 vi n ph叩t tri n b i c叩 nh但n, t ch c ho c c c ng ng) 2-C叩ch s d ng 董n gi n 1 import numpy 2 import os 3 import dlib 4 import tensoflow 5 3-T x但y d ng th動 vi棚n cho ri棚ng m狸nh: 1 import my_lib 2
- 6. Python NGUYEN Hong Thinh 5/16 Ci t Python C坦 th ci t Python t ng ph n v c叩c th動 vi n ri棚ng r s d ng pip tr棚n CMD/terminal: Link download: https://www.python.org/downloads Ci t full-package s d ng anaconda: Link download:https://www.anaconda.com/distribution
- 7. Python NGUYEN Hong Thinh 6/16 Tr狸nh so n th o v bi棚n d ch Python kh担ng c n m t ch動董ng tr狸nh so n th o ri棚ng M t s tr狸nh so n th o chuy棚n d ng: Visual Studio Thonny, PyCharm, Spider.. G n 但y: Jupyter Notebook, Jupyter Lab D h c, d debug, d hi n th h狸nh v , b ng bi u => s d ng Jupyter cho kho叩 h c Kh i ng Jupyter, tr棚n CMD/terminal d湛ng l nh: jupyter notebook
- 8. Python NGUYEN Hong Thinh 7/16 H動 ng d n s d ng Jupyter Notebook
- 9. Python NGUYEN Hong Thinh 8/16 H動 ng d n s d ng Jupyter Notebook
- 10. Python NGUYEN Hong Thinh 9/16 H動 ng d n s d ng Jupyter Notebook C叩c ph鱈m t t tr棚n Cell c a Jupyter notebook:
- 11. Python NGUYEN Hong Thinh 10/16 M t s ch炭 箪 v i Jupyter C叩c cell u h tr s d ng Tab auto complete (g i 箪 l nh, bi n ..) Khi mu n th c hi n 1 l nh tr棚n cmd /terminal tr棚n cell h達y s d ng ph鱈a tr動 c l nh c n th c hi n 1 !pip install keras 2 C叩c o n cell ch y kh担ng theo th t tr棚n/d動 i c a Cell, m theo vi c ta ch n cell v k鱈ch run. Th t 坦 動 c l動u l i ID-number c a Cell trong [ ]
- 12. Python NGUYEN Hong Thinh 11/16 Python library s d ng th動 vi n ta d湛ng l nh import 1 import numpy as 2 C坦 th s d ng m t ph n c a th動 vi n: 1 from scikit -learn import svm 2 C叩c th動 vi n ph bi n c a Python: numpy, scipy, os matplotlib, seaborn time,date scikitlearn,tensorflow, keras kivy, tkinter 1 !pip install keras 2 Debug: Khi s d ng m t th動 vi n ch動a 動 c ci t c湛ng v i Python, s c坦 l i ModuleNotFoundError: No module named keras
- 13. Python NGUYEN Hong Thinh 12/16 Python Statement L m t l nh m ch動董ng tr狸nh c坦 th hi u v ch y Th動 ng c叩c l nh s n m tr棚n 1 d嘆ng. N u ph i vi t 1 l nh tr棚n nhi u d嘆ng, d湛ng 1 "hello."+ 2 "How are you" 3 Python c滴ng cho ph辿p vi t nhi u l nh tr棚n 1 d嘆ng, s d ng d u ; ngn c叩ch c叩c l nh: 1 a=1;b=2;c=3 2
- 14. Python NGUYEN Hong Thinh 13/16 Python : Indentation Python s d ng nh d ng tab (th t vo 1 tab) cho c叩c level gi a c叩c o n l nh kh叩c nhau 1 tab = 4 white-spaces = 1 level. Tuy nhi棚n ch n棚n s d ng Tab ho c white-spaces kh担ng s d ng l n l n d g但y l i. Debug: C叩c white-space v tab c c k畛 quan tr ng khi vi t code python. L i th動 ng g p khi sai nh d ng tab/white-space: unexpected indent 1 a=1 2 b=2 3 4 ^ 5 IndentationError : unexpected indent 6 7
- 15. Python NGUYEN Hong Thinh 14/16 Python: Comment M i ng担n ng l p tr狸nh v m i ch動董ng tr狸nh u c n comment gi i th鱈ch l nh/o n l nh no d湛ng lm g狸. C叩c l nh quan tr ng, c叩c o n l nh ph i 動 c vi t ch炭 gi i. th c hi n comment, s d ng d u #. Ph鱈a sau d u # ch動董ng tr狸nh s hi u l comment v kh担ng bi棚n d ch. 1 2 # Write the wellcome: 3 s=input("What is your name") 4 print("hello",s) 5 6 Ri棚ng tr棚n jupyter: c坦 th ch n 1 cell v ki u mardown vi t comment.
- 16. Python NGUYEN Hong Thinh 15/16 Python script v function Script l m t o n l nh, th c hi n 1 nhi m v no y, th動 ng 動 c save d動 i d ng .py. N u o n l nh ny ch r探 input/ouput ta c坦 hm con (function). M t script c坦 th g m nhi u functions 1 def say_Hello (): 2 s=input("What is your name") 3 print("Hello", s) 4 return 5 C叩c o n l nh c坦 th ch y c l p ho c 動 c g i t ch動董ng tr狸nh kh叩c, project kh叩c (import. . . .). Trong file script, v tr鱈 c叩c hm con c坦 th u hay cu i c a main program. Trong jupyter, l動u 箪 ph i run Cell c坦 khai b叩o ch動董ng tr狸nh con tr動 c khi g i. Run 1 ch動董ng tr狸nh .py: tr棚n c a s CMD/terminal: 1 python <filename.py > 2
- 17. Python NGUYEN Hong Thinh 16/16 Ch炭 箪 khi h c: S d ng Juyter nh動 gi y nh叩p, th m i th v r炭t ra k t lu n V i m i l nh 炭ng, h達y th s a n坦 thnh sai v ki m tra xem n坦 b叩o l i th no 1 a=1; 1=b; #?? 2 C g ng vi t code ng n nh t, 董n gi n nh t c坦 th 1 a,b,c=1,2,3; # a=1; b=2; c=3 2 Debug code: Nguy棚n l箪 chia 担i. t狸m l i c a 1 ch動董ng tr狸nh, h達y chia 担i r i test tr棚n t ng n a. L p l i qu叩 tr狸nh, th狸 ch c n test kho ng 5-6 b動 c s ph叩t hi n c坦 v湛ng l i x y ra.