I'm supposed to reverse a list of countries I want to visit (alphabetical)
list = ['Poland', 'Russia', 'Germany', 'USA', 'China']
How can I do this without changing the list permanently?
first of all dont save it to built in
list
lister[::-1]
please, use meaningful titles, this time I changed it for you.
don't use list as variable name. it's a built-in function and you override it
>>> countries = ['Poland', 'Russia', 'Germany', 'USA', 'China']
>>> sorted(countries)
['China', 'Germany', 'Poland', 'Russia', 'USA']
>>> countries
['Poland', 'Russia', 'Germany', 'USA', 'China']
>>>
>>> sorted(countries, reverse=True)
['USA', 'Russia', 'Poland', 'Germany', 'China']
When I try printing again, I don't get it in the regular order. How do I revert from reverse alphabetical to stock?
E.g:
sorted(countries, reverse=True)
['USA', 'Russia', 'Poland', 'Germany', 'China']
now... I get the reverse alphabetical order... Now, how do I get out of this variable and print the stock list again?
sorted(countries, reverse=True)
print (countries)
print ("\nHere is the original list:")
### I want the original here ###
locations = ['himalaya', 'andes', 'tierra del fuego', 'labrador', 'guam']
print("Original order:")
print(locations)
print("\nAlphabetical:")
print(sorted(locations))
print("\nOriginal order:")
print(locations)
print("\nReverse alphabetical:")
print(sorted(locations, reverse=True))
print("\nOriginal order:")
print(locations)
print("\nReversed:")
locations.reverse()
print(locations)
print("\nOriginal order:")
locations.reverse()
print(locations)
print("\nAlphabetical")
locations.sort()
print(locations)
print("\nReverse alphabetical")
locations.sort(reverse=True)
print(locations)found out my book had a support site...