A21 inventory

[darkseid-03]

def create_inventory(items):
inventory_dict={}
for i in items:
if i not in inventory_dict:
inventory_dict[i]=1
elif i in inventory_dict:
inventory_dict[i]+=1
return inventory_dict

def add_items(inventory_dict,items):
for j in items:
if j in inventory_dict:
inventory_dict[j]+=1
if j not in inventory_dict:
inventory_dict[j]=1
return inventory_dict

def decrement_items(inventory_dict,items):
for j in items:
inventory_dict[j]-=1
if inventory_dict[j]<0:
inventory_dict[j]=0
return inventory_dict

def remove_item(inventory_dict,item):
item_List=list(inventory_dict.keys())
for i in item_List:
if i==item:
inventory_dict.pop(i,None)
return inventory_dict

def list_inventory(inventory_dict):
inventory_list=[]
for key in inventory_dict:
inventory_tuple=()
if inventory_dict[key]>0:
inventory_list.append((key,)+(inventory_dict[key],))
return inventory_list