Create banking.py

Author: keshavsingh3197

file_handling/banking.py

@@ -0,0 +1,195 @@
+import pickle
+import os
+class Account:
+ def __init__(self,id=10000000):
+  self.type=input('what type of Account you Want to open? S(min 5000) or C(min 10000) :').upper()
+  self.name=input('Enter name: ')
+  self.id=id
+  while True:
+   self.amount=int(input('Enter Amount: '))
+   if self.type in ('s','S'):
+    if self.amount<5000:
+     print('Enter Amount Again')
+     continue
+    else:
+     break
+   if self.type in ('c','C'):
+    if self.amount<10000:
+     print('Enter Amount Again')
+     continue
+    else:
+     break
+ def display(self):
+  print('{:<20}{:<20}{:<20}{:<20}'.format(self.id,self.name,self.type,self.amount))
+#create account
+def CreateAccount():
+ try:
+  file=open('keshav.bin','rb')
+  while True:
+   p=pickle.load(file)
+ except FileNotFoundError as e:
+  file1=open('keshav.bin','ab')
+  s=Account()
+  pickle.dump(s,file1)
+  file1.close()
+ except EOFError as e:
+  file1=open('keshav.bin','ab')
+  p.id+=1
+  print(p.id)
+  s=Account(p.id)
+  pickle.dump(s,file1)
+  file1.close()
+#display function
+def DisplayFile():
+ file=open('keshav.bin','rb')
+ print('{:<20}{:<20}{:<20}{:<20}'.format('id','name','type','amount'))
+ try:
+  while True:
+   p=pickle.load(file)
+   p.display()
+ except Exception as e:
+  print(e)
+ else:
+  file.close()
+#deposit money
+def Deposit():
+ file=open('keshav.bin','rb+')
+ file1=open('temp.bin','wb')
+ n=int(input('enter id ex. 10000000: '))
+ money=int(input('enter money to deposit: '))
+ try:
+  while True:
+   p=pickle.load(file)
+   if p.id==n:
+     p.amount+=money
+   pickle.dump(p,file1)
+ except:
+  file.close()
+  file1.close()
+ finally:
+  os.remove('keshav.bin')
+  os.rename('temp.bin','keshav.bin')
+
+#withdraw money
+def Withdraw():
+ def main_money():
+  def avail_money():
+   money=int(input('enter money in multiple of 100 200 500 2000: '))
+   l=[100,200,500,2000]
+   for i in l:
+    if money%i==0:
+     return money
+    else:
+     continue
+   else:
+    print("u cant withdraw money ")
+    return False
+  while True:
+   r=avail_money()
+   if r==False:
+    print('failed')
+    continue
+   else:
+    return r
+
+ def load_money(file,file1):
+  while True:
+   p=pickle.load(file)
+   if p.id==n:
+    while True:
+     money=main_money()
+     if p.amount<money:
+      print("insufficient balance!")
+      continue
+     else:
+      if p.type=='C':
+       if p.amount-money>=10000:
+        p.amount-=money
+        print('process completed successfully !')
+        break
+       else:
+        print("\t can't withdraw money","\n\t your current account limit is 10000","\n\t you can withraw max: ",p.amount-10000)
+        continue
+      if p.type=='S':
+       if p.amount-money>=5000:
+        p.amount-=money
+        print('process completed successfully !')
+        break
+       else:
+        print("\tcan't withdraw","\n\t your current account limit is 5000","\n\t you can withraw max: ",p.amount-5000)
+        continue
+   pickle.dump(p,file1)
+ file=open('keshav.bin','rb+')
+ file1=open('temp.bin','wb')
+ n=int(input('enter id ex. 10000000: '))
+ try:
+  load_money(file,file1)
+ except:
+  file.close()
+  file1.close()
+ finally:
+  os.remove('keshav.bin')
+  os.rename('temp.bin','keshav.bin')
+#update your account
+def Update():
+ file=open('keshav.bin','rb+')
+ file1=open('temp.bin','wb')
+ n=int(input('enter id ex. 10000000: '))
+ name=input('Enter new name:  ')
+ #type=input('Enter type of account: ').upper()
+ try:
+  while True:
+   p=pickle.load(file)
+   if p.id==n:
+     p.name=name
+   pickle.dump(p,file1)
+ except:
+  file.close()
+  file1.close()
+ finally:
+  os.remove('keshav.bin')
+  os.rename('temp.bin','keshav.bin')
+#search your account
+def Search():
+ file=open('keshav.bin','rb')
+ n=int(input('enter id ex. 10000000: '))
+ try:
+  while True:
+   p=pickle.load(file)
+   if p.id==n:
+     print(' {:*>35} {:*<35}'.format('start detail of account: ',p.name))
+     print('id: ',p.id,'\nname: ',p.name,'\ntotal balance: ',p.amount,'\ntype: ',p.type)
+     print(' {:*>35} {:*<35}'.format(' end detail of account: ',p.name))
+     break
+ except:
+  file.close()
+ else:
+  file.close()
+#
+print("{:*^70}".format(' Banking Management System '),end='\n'*3)
+def Choise():
+ print('What Do You Wanna Do?')
+ print('1.Create Account')
+ print('2.View all Accounts')
+ print('3.Deposit')
+ print('4.Withdraw')
+ print('5.Update')
+ print('6.Search')
+ print('7.Exit')
+ return int(input('Enter your choise here: '))
+while True:
+ i=Choise()
+ if i==1:
+  CreateAccount()
+ if i==2:
+  DisplayFile()
+ if i==3:
+  Deposit()
+ if i==4:
+  Withdraw()
+ if i==5:
+  Update()
+ if i==6:
+  Search()
+ if i==7:
+  break