Answer 1

seems like you are only writing into the file.

[CHECK THIS]
import csv
with open('companies.csv','w') as csvfile:
fieldnames =['name','type']
writer=csv.DictWriter(csvfile, fieldnames= fieldnames)
writer.writeheader()
writer.writerow({'name':'codecademy','type':'slave'})
writer.writerow({'name':'Googke','type':'freedom'})

with open("companies.csv","r") as f :
a=csv.reader(f)
for i in a:
print(i)

f.close()