###
###  List
###
###----------------------------------------


#--- convert a list to single string (list can have both string and number)
mylist     = ['I', 'want', 4, 'apples', 'and', 18, 'bananas']
newstring  = ' '.join(map(str, mylist))
print(newstring)




#--- Conditionally Replace items in a list
# https://www.saltycrane.com/blog/2008/08/how-conditionally-replace-items-list/
mylist  = ['I', 'want', 'and', 'apples', 'and', 'or', 'bananas']
newlist = []
for item in mylist:
    if item == 'and':
        item = 'x'
    newlist.append(item)
print(mylist)
print(newlist)


#- Conditionally Replace items in a list 2
mylist  = ['I', 'want', 'and', 'apples', 'and', 'or', 'bananas']
for (i, item) in enumerate(mylist):
    if item == 'and':
        mylist[i] = 'x'
print(mylist)
print(newlist)


#- Conditionally Replace items in a list 3
#  https://stackoverflow.com/questions/32699654/python-replace-elements-in-list-with-conditional
mylist = ['I', 'want', 'and', 'apples', 'and', 'or', 'bananas']
newlist = ['x' if item == 'and' else item for item in mylist]
print(newlist)