here is a heading 2

a=5 hello my name is phil

print(a)

Assignment: write a program in any language that:

opens a file named input.txt with a line of two numbers in the format:

1000;-3

where both numbers are integers, the first positive and the second negative
assigns those two values to the variables: total_count and step_size, respectively
loops from total_count to 0 by step_size, printing the loop integer for each step

I) Naive approach

Step 1: write out a text file named input.txt using the IPython file "magic"



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%%file input.txt
20;-3

Step 2: open the file and read a line into a variable



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f=open('input.txt','r')
firstline=f.readline()

Step 3: split the line and assign the values to variables, converting strings to ints



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total_count,step_size=firstline.split(';')
total_count,step_size=int(total_count),int(step_size)
print("got total_count and step_size values of {}, {}".format(total_count,step_size))

Step 4: Use the range function to get a list of integers to print



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help(range)



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the_ints=range(total_count,0,step_size)

Step 5: loop and print



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for the_num in the_ints:
    print the_num



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import testit



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!ls



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import tesit



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dir(tesit)



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reload(tesit)



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!pwd



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