Python_01_problemset.md

Python 1 Problem Set

Move into your PFB_problemsets directory and make a new directory called 'python1'.

1. Working with the interpreter: Start up the Python Interactive Interpreter.

   • python3 this is how you start the interpreter on the command line
   • Print out "Hello New York"
   • Store your name in a variable
   • Print the contents of this variable.
   • QUIT the Interpreter

2. Working with a text editor: Use vi to create and write a script. Name your script about_me.py. Python scripts should always have the .py extension.

   • vi about_me.py

   • Make sure to include #!/usr/bin/env python3 on line 1 of your script. It has to be on line one. Do not leave a blank line above.

   • Add code to print out, your name

     Script Output:

      My name: Sofia
     

   • On the command line make it executable using chmod (only have to do this one time per script).

   • Run it from the command line. python3 about_me.py

   • Remember it is important to write only a bit, test, then write more.

   • If it works, ADD/COMMIT. Make a good message, like "added name to print"

   • Now add some code to print out your favorite color:

     Script Output:

     My name: Sofia
     My favorite color: Green
     

   • Save it, and run it from the command line.

   • Now add some code to create a variable with your favorite activity. Make sure to give your variable a descriptive name.

   • Print out the variable with your favorite activity. You will need to use a comma in your print statement to print text and your variable. print("some text" , your_variable)

       My name: Sofia
       My favorite color: Green
       My favorite activity: Coding
     

   • Save it, and run it from the command line.

   • Now add some code to print out your favorite animal:

      My name: Sofia
      My favorite color: Green
      My favorite activity: Coding
      My favorite animal: Chicken (Gallus gallus)
     

     Remember, write a bit, then run your code, write some more, then run again. This makes code easier to debug.

   • Try out f"" string formatting. Change one or all of your print statements to use f"" with your variable in curly braces. example:

     print(f"My name: {name}") 
     

3. Use sys.argv (make sure to import sys!!!) to retrieve your name, favorite color, favorite activity, and favorite animal from the command line. Remember to check out the example in the notes. Print all the variables in one print statement.

   • try using commas to separate your print arguments.
   • try using '+' to separate your print arguments.

4. Make sure to keep your remote repository synced with your local repo. (ADD/COMMIT/PUSH)