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Hello Python!I N T R O D U C T I O N TO P Y T H O N
Hugo Bowne-AndersonData Scientist at DataCamp
INTRODUCTION TO PYTHON
How you will learn
INTRODUCTION TO PYTHON
Python
General purpose: build anything
Open source! Free!
Python packages, also for data science
Many applications and �elds
Version 3.x - https://www.python.org/downloads/
INTRODUCTION TO PYTHON
IPython ShellExecute Python commands
INTRODUCTION TO PYTHON
IPython Shell
INTRODUCTION TO PYTHON
Python ScriptText �les - .py
List of Python commands
Similar to typing in IPython Shell
INTRODUCTION TO PYTHON
Python Script
INTRODUCTION TO PYTHON
Python Script
Use print() to generate output from script
INTRODUCTION TO PYTHON
DataCamp Interface
Let's practice!I N T R O D U C T I O N TO P Y T H O N
Variables and TypesI N T R O D U C T I O N TO P Y T H O N
Hugo Bowne-AndersonData Scientist at DataCamp
INTRODUCTION TO PYTHON
VariableSpeci�c, case-sensitive name
Call up value through variable name
1.79 m - 68.7 kg
height = 1.79
weight = 68.7
height
1.79
INTRODUCTION TO PYTHON
Calculate BMIheight = 1.79
weight = 68.7 height
1.79
BMI =
68.7 / 1.79 ** 2
21.4413
weight / height ** 2
21.4413
bmi = weight / height ** 2
bmi
21.4413
height2weight
INTRODUCTION TO PYTHON
Reproducibility
height = 1.79
weight = 68.7
bmi = weight / height ** 2
print(bmi)
21.4413
INTRODUCTION TO PYTHON
Reproducibility
height = 1.79
weight = 74.2 # <-
bmi = weight / height ** 2
print(bmi)
23.1578
INTRODUCTION TO PYTHON
Python Types
type(bmi)
float
day_of_week = 5
type(day_of_week)
int
INTRODUCTION TO PYTHON
Python Types (2)
x = "body mass index"
y = 'this works too'
type(y)
str
z = True
type(z)
bool
INTRODUCTION TO PYTHON
Python Types (3)
2 + 3
5
'ab' + 'cd'
'abcd'
Different type = different behavior!
Let's practice!I N T R O D U C T I O N TO P Y T H O N
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