Python Program to Implement Data Reading of Body Weights of Terrestrial Mammals Assignment Solution

Instructions

Objective

Write a python assignment program to implement data reading of body weights of terrestrial mammals.

Requirements and Specifications

Source Code

def find_insert_position(mammal_name, listofnames): # If the list is empty, return 0 if len(listofnames) == 0: return 0 for i, element in enumerate(listofnames): if element > mammal_name: return i # If there are no elements in the list higher than the given name, it means # that the given name must be inserted at the end return len(listofnames) def populate_lists(listofnames, listofbodyweights, listofbrainweights): # Open file data = open('BrainBodyWeightKilos.csv', 'r') # Read lines lines = data.readlines() # Loop through lines for line in lines: # Strip line = line.strip() # Split row = line.split(',') # Take the name, convert to title case name = row[0].lower() name = name[0].upper() + name[1:] # Take the body weight and convert to float body_weight = float(row[1]) # Take Brain weight and convert to float brain_weight = float(row[2]) # Now, append to lists # Find index at which they must be inserted idx = find_insert_position(name, listofnames) listofnames.insert(idx, name) listofbodyweights.insert(idx, body_weight) listofbrainweights.insert(idx, brain_weight) # Close file data.close() def write_converted_csv(filename, listofnames, listofbodyweights, listofbrainweights): # Define the conversion factor from Kilograms to Pounds LBS_IN_KG = 2.205 LBS_IN_G = 0.0022 # First, open the file in write mode file = open(filename, 'w+') # create in case it does not exists # Get number of records n = len(listofnames) # all three lists should have the same number of records # Now, loop through all elements in the lists for i in range(n): name = listofnames[i] body_weight_kg = listofbodyweights[i] brain_weight_g = listofbrainweights[i] # Convert body weight from kg to lb body_weight_lb = body_weight_kg*LBS_IN_KG # Convert brain weight from grams to lb brain_weight_lb = brain_weight_g*LBS_IN_G # to lbs # Now, write to file file.write('{0},{1:.2f},{2:.2f}\n'.format(name, body_weight_lb, brain_weight_lb)) # Finally, close the file file.close() def main(): # Lists to store names and weights listofnames = list() listofbodyweights = list() listofbrainweights = list() # Populate populate_lists(listofnames, listofbodyweights, listofbrainweights) # Now repeatedly ask for animal name while True: name = input('Enter animal name (or "q" to quit): ') # Convert to title case name = name.lower() name = name[0].upper() + name[1:] if name == 'Q': # Write data to csv write_converted_csv('BrainBodyWeightPounds.csv', listofnames, listofbodyweights, listofbrainweights) break else: if name in listofnames: # Name is in the list of names # Find and print idx = listofnames.index(name) body_weight = listofbodyweights[idx] brain_weight = listofbrainweights[idx] print('{0}: body = {1:.2f}, brain = {2:.2f}'.format(name, body_weight, brain_weight)) delete = input(f'Delete "{name}"? (y|n) ') if delete == 'y': del listofnames[idx] del listofbodyweights[idx] del listofbrainweights[idx] else: # Name not in list print(f'File does not contain "{name}".') add = input(f'Add "{name}" to file? (y|n) ') if add == 'y': # Ask for body weight body_weight = float(input(f'Enter body weight for "{name}" in kilograms: ')) brain_weight = float(input(f'Enter brain weight for {name} in grams: ')) # Now, insert idx = find_insert_position(name, listofnames) listofnames.insert(idx, name) listofbodyweights.insert(idx, body_weight) listofbrainweights.insert(idx, brain_weight) print() if __name__ == '__main__': main()