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

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()