Learning Python Through PYM on Everyone Has a Story

Learning python through pym 14-08-2019

BhaveshSGupta@disroot.org (Bhavesh S. Gupta) — Wed, 14 Aug 2019 16:57:26 +0530

Day 4

PS: These are notes, there could be grammar error and spelling errors.

for loops

For loop over a list goes as follows:

1
2
3
4
5
6
7
8


>>> a = ['Fedora', 'is', 'powerful']
>>> for x in a:
... print(x)
...
# these ... are automatically created by python interpreter
Fedora
is
powerful

range() function

range function creates lists based on parameter passed in function``py

1
2
3
4
5
6


>>> list(range(1, 5)) # when two numbers are passed n,j List starts at n ends at j-1
 [1, 2, 3, 4]
>>> list(range(1, 15, 3)) # when three numbers are passed n,j,k. List starts at n ends at j after stepping at every k steps
[1, 4, 7, 10, 13]
>>> list(range(10)) # when only single number n is passed list starts from 0 and ends after n elements
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

Continue statement

Just like break is use to break loop, continue is used to continue loop towards iteration without further execution A combined example.

Learning python through pym 13-08-2019

BhaveshSGupta@disroot.org (Bhavesh S. Gupta) — Tue, 13 Aug 2019 20:57:26 +0530

Day 3

PS: These are notes, there could be grammar error and spelling errors.

Last time we were just starting with If else, the control flow,

if-else , the control flow

Control flow is used when we need to do some decisive task

if, if else, if elif else statement

If statement is simple as it is other language

1
2


if expression:
 do this

1
2
3
4


if expression:
 do this
else:
 do this

1
2
3
4
5
6


if expression:
 do this
elif expression:
 do this
else:
 do this

Things to note:

Learning python through pym 12-08-2019

BhaveshSGupta@disroot.org (Bhavesh S. Gupta) — Mon, 12 Aug 2019 20:57:26 +0530

Day 2

PS: These are notes, there could be grammar error and spelling errors.

Last time had got until here,

We don’t need specify data type with python something similar to javascript where we use var for every type of variable.(const and let are new ES6 standards, although they are not new but new)

So basically

1
2
3


a = 10
b = 1.0
c = "test"

in above a become integer, b becomes float and c becomes string.

Learning python through pym 10-08-2019

BhaveshSGupta@disroot.org (Bhavesh S. Gupta) — Sat, 10 Aug 2019 17:59:22 +0530

Day 1

Installing python

one can install python using package manager depending upon the operating system you are using. As I have a windows machine and ubuntu using linux on windows subsystem. I can install python from https://python.org . And Ubuntu I can use below command to install python.

`1`	`sudo apt-get install python3`

Running python

To run python you would call python3 which open Python interpreter. On that you can type print(“Hello World”) to run your first python code which would print Hello World in next line.