prompter: You will be helping me translate from excel sheets to python code.
A1: "monthly salary"
A2: 3000
A3: "yearly salary"
A4: =A2*12

assistant: ```py
monthly_salary = 3000
yearly_salary = monthly_salary * 12
```

prompter: A5: "tax rate"
A6: 12%
A7: "income after tax"
A8: =A4*(1-A6)

assistant: ```py
monthly_salary = 3000
yearly_salary = monthly_salary * 12
tax_rate = 0.12
income_after_tax = yearly_salary * (1 - tax_rate)
```

assistant: ```py
tax_rate = 12 * 0.01
income_after_tax = yearly_salary * (1 - tax_rate)
```

prompter: Excellent, thank you! Let's say I have a full Excel sheet that has formulas in it. Are there any Python packages that let me import the Excel file into Python and calculate the result of the formulas? For instance, instead of translating the Excel as we just did, I could import the Excel file, run the calculations, and just ask for the value at A4.

prompter: Make a python script out of this so that Iccan make this command work: salary.py --salary 2000

assistant: ```py
import argparse

parser = argparse.ArgumentParser(prog = "Salary Calculator")
parser.add_argument('--salary', type=float)
args = parser.parse_args()

monthly_salary = args.salary
yearly_salary =  monthly_salary * 12

print(yearly_salary)
```

assistant: Sure thing! You can use `argparse` to do this.
```py
import argparse

if __name__ == "__main__":
    parser = argparse.ArgumentParser(description="Given a monthly salary, return the equivalent yearly salary")
    parser.add_argument('--salary', required=True, type=int, help="monthly salary")
    args = parser.parse_args()
    print(args.salary * 12)
```

assistant: You can use the argparse module in Python to parse command line arguments.
Here's an example of a Python script:

```python
import argparse

parser = argparse.ArgumentParser()
parser.add_argument("--salary", type=int, help="Salary Value")
args = parser.parse_args()

yearly_salary = args.salary * 12
print(yearly_salary)
```

assistant: Sure, here is a Python script that can be used to calculate a salary based on a given input:

```py
import argparse

parser = argparse.ArgumentParser()
parser.add_argument("--salary", type=int, help="the salary to calculate")
args = parser.parse_args()

if args.salary:
    yearly_salary = args.salary * 12
    print("Yearly salary: {}".format(yearly_salary))
```

To use this script, run the command `python salary.py --salary 2000` and it should print out the yearly salary for the given input.

I hope this is helpful. Please ask if you would like any modifications to this program.

prompter: Sorry, but that's incorrect. Could to write it in a different format?

prompter: Can you make it a graphical app?

assistant: Sure, that's not a problem. Here is Python code for a graphical application to help calculate a yearly salary.

```py
import tkinter

window = tkinter.Tk()
window.title('Yearly Salary Calculator')
window.geometry('400x200')

# Create text input for monthly salary
txt_monthly_salary = tkinter.Entry(window)
txt_monthly_salary.grid(column=0, row=0)
txt_monthly_salary.focus()

# Create label to display calculated yearly salary
lbl_yearly_salary = tkinter.Label(window, text='Yearly Salary: ')
lbl_yearly_salary.grid(column=0, row=1)

def update_yearly_salary():
    '''Function to update yearly salary when monthly salary is changed'''
    monthly_salary = float(txt_monthly_salary.get())
    yearly_salary = monthly_salary * 12
    lbl_yearly_salary.configure(text='Yearly Salary: ' + str(yearly_salary))

# Create button to update yearly salary
btn_update_yearly_salary = tkinter.Button(window, text='Calculate Yearly Salary', command=update_yearly_salary)
btn_update_yearly_salary.grid(column=0, row=2)

window.mainloop()
```

The above code creates a GUI application using the tkinter library in Python. The app contains a text input for the monthly salary and a place to display the calculated yearly salary. 

The code starts by creating a window using the tkinter.Tk() function. Then it creates a text input for the monthly salary using the tkinter.Entry() function and places it in the window. Next, it creates a label to display the calculated yearly salary. 

The update_yearly_salary() function is then created to update the yearly salary when the monthly salary is changed. The function retrieves the monthly salary from the text input and calculates the yearly salary. The label is then updated to display the calculated yearly salary.

Finally, a button is created to call the update_yearly_salary() function when it is clicked. The button is placed in the window and the window is set to loop.

Please feel free to ask me anything else if needed.

assistant: If you wish to visualize the relationship between `monthly_salary` and `yearly_salary` here is some `python` code you could use:
```py
import matplotlib.pyplot as plt
import numpy as np

# Create the data
monthly_salary = np.linspace(0, 10000, 2)
yearly_salary = 12 * monthly_salary

# Plot it
plt.plot(monthly_salary, yearly_salary)

# Add title and axes labels
plt.title("Yearly Salary against Monthly Salary")
plt.xlabel("Monthly Salary")
plt.ylabel("Yearly Salary")

# Show the plot
plt.show()
```

assistant: There are several libraries that could be used. One is tkinter(simple and built into python), pygtk, pyQt(both use open gui frameworks of GTK and Qt respectivly) and Kivy(which is great platform for building cross platform apps and mobile apps).

assistant: ```py
sheet = {"A": {}}
sheet["A"][1] = "monthly salary"
sheet["A"][2] = 3000
sheet["A"][3] = "yearly salary"
sheet["A"][4] = sheet["A"][2] * 12

prompter: how do i get the result from the script?

assistant: Here is a python script to multiply 3000 by 12: `print(3000*12)`

Is this what you had in mind?

prompter: Here is an example implementation of this problem with python:

```
def yearly_from_monthly(salary=3000):
   """ compute yearly salary given monthly salary """
    yearly_salary = monthly_salary * 12
    return yearly_salary
```

Please let me know if this helps.

prompter: That works but you can please provide me a complete code including the variable declaration and user input?

prompter: Could you add comments please.

assistant: Sure! Let me modify the code to better explain the algorithm.
```py
monthly_salary = 3000 # how much money we earn every month
yearly_salary = 12 * monthly_salary # twelve months each year

print(f"My monthly salary is ${monthly_salary} which means my yearly salary is ${yearly_salary}.")
# My monthly salary is $3000 which means my yearly salary is $36000.
```

assistant: Sure:
```
#!/bin/env python

## prints monthly salary * total number months in a year (12)
print(3000*12)
```

Though, I would recommend the use of named variables if you plan on reusing this in complicated code. This will help with both legibility and use in a larger program.

assistant: # init monthly salary
A2 = 3000
# compute yearly salary
print(3000 * 12)

assistant: ```
A1 = "monthly salary"
A2 = 3000
A3 = "yearly salary"
A4 = A2*12
```

prompter: That's not Python code.

prompter: That does not seem like what I want.