A Gentle introduction to python
Write your first Program in python
Python is a very simple language , and has very intuitive syntax.It encourages programmer write his code easily and efficiently(with less line you can do more)
For Example: You can just write
print("some line") to print it out to the screen and yes you can first prototype your logic first and easily and then later convert it into other language
In this article We'll see some basics of python to get started
Printing out a line
- As discussed above you have to write the following to print out a line
print("some string here") print("My name is Pratyush")
2. Not only the strings but also you can add numbers to print and show it in the screen
variables and types
As we have taken first steps by printing the line to the screen,Now let's move forward to yet another important thing on any programming language i.e Variables and types Variables are like boxes with label as the variable name. You can store any thing in it. But in any programming language there is Number , strings(set of characters) and boolean(true or false type ) of variables
Python gives two types of numbers-Integers(whole numbers like -1 ,-2,2,3) and floating point numbers(decimals).
To define an Integer use the following syntax
myfirstinteger = 7 print(myfirstinteger)
To define a floating point Number we can use one of the following syntax
myfirstfloat = 7.0 print(myfirstfloat)
myfirstfloat = float(7) print(myfirstfloat)
Strings are nothing but a stream of characters.Strings are defined either with single quote or a double quotes
myfirststring = 'hello' mysecondstring = "second" print(mystring) print(secondstring)
The difference between the two is that using double quotes makes it easy to include apostrophes and using the single quotes insides the double quotes it does not give any errors
mystring = "Don't worry about apostrophes" print(mystring)
As we have discussed a lot let's take a time to test understandings.
The aim of this exercise is to define three types of variables string , Number and float and save respective values to its respective variables or you can say containers.
- The string should be named
myfirststringand should contain the word Amazing.
- The floating point number should be namesd as
myfirstfloatand should contain the number 10.0 . Try to do it both the ways we have discussed.
- The Integer should be named
myfirstintegerand should contain the number 10