IT 117: Intermediate Scripting - Class 4 Exercise

IT 117: Intermediate to Scripting
Class 4 Exercise

Script for this exercise

Open a text editor
You can use the editor built into IDLE or use a program like Sublime.
Copy the text below into the file

Code for Exercise

Save the file as ex4.py
Copy the file numbers.txt from /home/ghoffman/course_files/it117_files
Use FileZilla to do this.
Run this script in IDLE
Open the script file in IDLE. Under the Run menu, select Run Module.

You should see

value: 6
TypeError on round(five): type str doesn't define __round__ method
value: None

value: 0.6
You cannot divide a number by zero
value: None

value: 50
fifty cannot be converted into an integer
value: None

Could not open xxxx

3
3
9
5
2
7
6
8
10
1

List: [3, 3, 9, 5, 2, 7, 6, 8, 10, 1]

List: [3, 3, 9, 5, 2, 7, 6, 8, 10, 1]

The letter i appears  4 times in Mississippi

Unix setup

Log in to users3.cs.umb.edu
You will be in your home directory.
Go to your it117 directory
```
cd it117
```
Go to your ex directory
```
cd ex
```
Create a directory for this exercise
```
mkdir  ex4
```
Check that the directory was created
```
ls
```

Copy the file to Unix

Open FileZilla and connect to users3.cs.umb.edu
You will have to connect using your Unix username and password.
Copy the file to the to it117/ex/ex4

Testing the script on Unix

Connect to users3.cs.umb.edu
Use an ssh client.
Go to the directory for this exercise
```
cd  it117/ex/ex4
```
Make this script executable
```
chmod  755 ex4.py
```
Copy the file numbers.txt from /home/ghoffman/course_files/it117_files
```
cp  /home/ghoffman/course_files/it117_files/numbers.txt  .
```
Run this script
```
./ex4.py
```

You should see

value: 6
TypeError on round(five): type str doesn't define __round__ method
value: None

value: 0.6
You cannot divide a number by zero
value: None

value: 50
fifty cannot be converted into an integer
value: None

Could not open xxxx

3
3
9
5
2
7
6
8
10
1

List: [3, 3, 9, 5, 2, 7, 6, 8, 10, 1]

List: [3, 3, 9, 5, 2, 7, 6, 8, 10, 1]

The letter i appears  4 times in Mississippi

Running my test script on your script

If you want to run my test script on your Class Exercise script do the following
Run ex04.sh on your script
```
~ghoffman/it117_test/ex04.sh
```
The script will prompt you for your Unix username.