import tkinter as tk
from tkinter import messagebox
from time import gmtime, strftime


def is_number(s):
    try:
        float(s)
        return 1
    except ValueError:
        return 0

def check_acc_nmb(num):
	try:
		fpin=open(num+".txt",'r')
	except FileNotFoundError:
		messagebox.showinfo("Error","Invalid Credentials!\nTry Again!")
		return 0
	fpin.close()
	return 

def home_return(master):
	master.destroy()
	Main_Menu()

def write(master,name,oc,pin):
	
	if( (is_number(name)) or (is_number(oc)==0) or (is_number(pin)==0)or name==""):
		messagebox.showinfo("Error","Invalid Credentials\nPlease try again.")
		master.destroy()
		return 

	f1=open("Accnt_Record.txt",'r')
	accnt_no=int(f1.readline())
	accnt_no+=1
	f1.close()

	f1=open("Accnt_Record.txt",'w')
	f1.write(str(accnt_no))
	f1.close()

	fdet=open(str(accnt_no)+".txt","w")
	fdet.write(pin+"\n")
	fdet.write(oc+"\n")
	fdet.write(str(accnt_no)+"\n")
	fdet.write(name+"\n")
	fdet.close()

	frec=open(str(accnt_no)+"-rec.txt",'w')
	frec.write("Date                             Credit      Debit     Balance\n")
	frec.write(str(strftime("[%Y-%m-%d] [%H:%M:%S]  ",gmtime()))+"     "+oc+"              "+oc+"\n")
	frec.close()
	
	messagebox.showinfo("Details","Your Account Number is:"+str(accnt_no))
	master.destroy()
	return

def crdt_write(master,amt,accnt,name):

	if(is_number(amt)==0):
		messagebox.showinfo("Error","Invalid Credentials\nPlease try again.")
		master.destroy()
		return 

	fdet=open(accnt+".txt",'r')
	pin=fdet.readline()
	camt=int(fdet.readline())
	fdet.close()
	amti=int(amt)
	cb=amti+camt
	fdet=open(accnt+".txt",'w')
	fdet.write(pin)
	fdet.write(str(cb)+"\n")
	fdet.write(accnt+"\n")
	fdet.write(name+"\n")
	fdet.close()
	frec=open(str(accnt)+"-rec.txt",'a+')
	frec.write(str(strftime("[%Y-%m-%d] [%H:%M:%S]  ",gmtime()))+"     "+str(amti)+"              "+str(cb)+"\n")
	frec.close()
	messagebox.showinfo("Operation Successfull!!","Amount Credited Successfully!!")
	master.destroy()
	return

def debit_write(master,amt,accnt,name):

	if(is_number(amt)==0):
		messagebox.showinfo("Error","Invalid Credentials\nPlease try again.")
		master.destroy()
		return 
			
	fdet=open(accnt+".txt",'r')
	pin=fdet.readline()
	camt=int(fdet.readline())
	fdet.close()
	if(int(amt)>camt):
		messagebox.showinfo("Error!!","You dont have that amount left in your account\nPlease try again.")
	else:
		amti=int(amt)
		cb=camt-amti
		fdet=open(accnt+".txt",'w')
		fdet.write(pin)
		fdet.write(str(cb)+"\n")
		fdet.write(accnt+"\n")
		fdet.write(name+"\n")
		fdet.close()
		frec=open(str(accnt)+"-rec.txt",'a+')
		frec.write(str(strftime("[%Y-%m-%d] [%H:%M:%S]  ",gmtime()))+"     "+"              "+str(amti)+"              "+str(cb)+"\n")
		frec.close()
		messagebox.showinfo("Operation Successfull!!","Amount Debited Successfully!!")
		master.destroy()
		return

def Cr_Amt(accnt,name):
	creditwn=tk.Tk()
	creditwn.geometry("600x300") 
	creditwn.title("Credit Amount")
	creditwn.configure(bg="SteelBlue1")
	fr1=tk.Frame(creditwn,bg="blue")
	l_title=tk.Message(creditwn,text="BANK MANAGEMENT SYSTEM",relief="raised",width=2000,padx=600,pady=0,fg="white",bg="blue4",justify="center",anchor="center")
	l_title.config(font=("Arial","50","bold"))
	l_title.pack(side="top")
	l1=tk.Label(creditwn,relief="raised",font=("Times",16),text="Enter Amount to be credited: ")
	e1=tk.Entry(creditwn,relief="raised")
	l1.pack(side="top")
	e1.pack(side="top")
	b=tk.Button(creditwn,text="Credit",font=("Times",16),relief="raised",command=lambda:crdt_write(creditwn,e1.get(),accnt,name))
	b.pack(side="top")
	creditwn.bind("<Return>",lambda x:crdt_write(creditwn,e1.get(),accnt,name))


def De_Amt(accnt,name):
	debitwn=tk.Tk()
	debitwn.geometry("600x300")
	debitwn.title("Debit Amount")	
	debitwn.configure(bg="SteelBlue1")
	fr1=tk.Frame(debitwn,bg="blue")
	l_title=tk.Message(debitwn,text="BANK MANAGEMENT SYSTEM",relief="raised",width=2000,padx=600,pady=0,fg="white",bg="blue4",justify="center",anchor="center")
	l_title.config(font=("Arial","50","bold"))
	l_title.pack(side="top")
	l1=tk.Label(debitwn,relief="raised",font=("Times",16),text="Enter Amount to be debited: ")
	e1=tk.Entry(debitwn,relief="raised")
	l1.pack(side="top")
	e1.pack(side="top")
	b=tk.Button(debitwn,text="Debit",font=("Times",16),relief="raised",command=lambda:debit_write(debitwn,e1.get(),accnt,name))
	b.pack(side="top")
	debitwn.bind("<Return>",lambda x:debit_write(debitwn,e1.get(),accnt,name))




def disp_bal(accnt):
	fdet=open(accnt+".txt",'r')
	fdet.readline()
	bal=fdet.readline()
	fdet.close()
	messagebox.showinfo("Balance",bal)




def disp_tr_hist(accnt):
	disp_wn=tk.Tk()
	disp_wn.geometry("900x600")
	disp_wn.title("Transaction History")
	disp_wn.configure(bg="SteelBlue1")
	fr1=tk.Frame(disp_wn,bg="blue")
	l_title=tk.Message(disp_wn,text="BANK MANAGEMENT SYSTEM",relief="raised",width=2000,padx=600,pady=0,fg="white",bg="blue4",justify="center",anchor="center")
	l_title.config(font=("Arial","50","bold"))
	l_title.pack(side="top")
	fr1=tk.Frame(disp_wn)
	fr1.pack(side="top")
	l1=tk.Message(disp_wn,text="Your Transaction History:",font=("Times",16),padx=100,pady=20,width=1000,bg="blue4",fg="SteelBlue1",relief="raised")
	l1.pack(side="top")
	fr2=tk.Frame(disp_wn)
	fr2.pack(side="top")
	frec=open(accnt+"-rec.txt",'r')
	for line in frec:
		l=tk.Message(disp_wn,anchor="w",text=line,relief="raised",width=2000)
		l.pack(side="top")
	b=tk.Button(disp_wn,text="Quit",relief="raised",command=disp_wn.destroy)
	b.pack(side="top")
	frec.close()

def logged_in_menu(accnt,name):
	rootwn=tk.Tk()
	rootwn.geometry("1600x500")
	rootwn.title("CopyAssignment Bank | Welcome - "+name)
	rootwn.configure(background='SteelBlue1')
	fr1=tk.Frame(rootwn)
	fr1.pack(side="top")
	l_title=tk.Message(rootwn,text="BANK MANAGEMENT SYSTEM",relief="raised",width=2000,padx=600,pady=0,fg="white",bg="blue4",justify="center",anchor="center")
	l_title.config(font=("Arial","50","bold"))
	l_title.pack(side="top")
	label=tk.Label(text="Logged in as: "+name,relief="raised",bg="blue3",font=("Times",16),fg="white",anchor="center",justify="center")
	label.pack(side="top")
	img2=tk.PhotoImage(file="credit.gif")
	myimg2=img2.subsample(2,2)
	img3=tk.PhotoImage(file="debit.gif")
	myimg3=img3.subsample(2,2)
	img4=tk.PhotoImage(file="balance1.gif")
	myimg4=img4.subsample(2,2)
	img5=tk.PhotoImage(file="transaction.gif")
	myimg5=img5.subsample(2,2)
	b2=tk.Button(image=myimg2,command=lambda: Cr_Amt(accnt,name))
	b2.image=myimg2
	b3=tk.Button(image=myimg3,command=lambda: De_Amt(accnt,name))
	b3.image=myimg3
	b4=tk.Button(image=myimg4,command=lambda: disp_bal(accnt))
	b4.image=myimg4
	b5=tk.Button(image=myimg5,command=lambda: disp_tr_hist(accnt))
	b5.image=myimg5
	
	img6=tk.PhotoImage(file="logout.gif")
	myimg6=img6.subsample(2,2)
	b6=tk.Button(image=myimg6,relief="raised",command=lambda: logout(rootwn))
	b6.image=myimg6

	
	b2.place(x=100,y=150)
	b3.place(x=100,y=220)
	b4.place(x=900,y=150)
	b5.place(x=900,y=220)
	b6.place(x=500,y=400)

	
def logout(master):
	
	messagebox.showinfo("Logged Out","You Have Been Successfully Logged Out!!")
	master.destroy()
	Main_Menu()

def check_log_in(master,name,acc_num,pin):
	if(check_acc_nmb(acc_num)==0):
		master.destroy()
		Main_Menu()
		return

	if( (is_number(name))  or (is_number(pin)==0) ):
		messagebox.showinfo("Error","Invalid Credentials\nPlease try again.")
		master.destroy()
		Main_Menu()
	else:
		master.destroy()
		logged_in_menu(acc_num,name)


def log_in(master):
	master.destroy()
	loginwn=tk.Tk()
	loginwn.geometry("600x300")
	loginwn.title("Log in")
	loginwn.configure(bg="SteelBlue1")
	fr1=tk.Frame(loginwn,bg="blue")
	l_title=tk.Message(loginwn,text="BANK MANAGEMENT SYSTEM",relief="raised",width=2000,padx=600,pady=0,fg="white",bg="blue4",justify="center",anchor="center")
	l_title.config(font=("Arial","50","bold"))
	l_title.pack(side="top")
	l1=tk.Label(loginwn,text="Enter Name:",font=("Times",16),relief="raised")
	l1.pack(side="top")
	e1=tk.Entry(loginwn)
	e1.pack(side="top")
	l2=tk.Label(loginwn,text="Enter account number:",font=("Times",16),relief="raised")
	l2.pack(side="top")
	e2=tk.Entry(loginwn)
	e2.pack(side="top")
	l3=tk.Label(loginwn,text="Enter your PIN:",font=("Times",16),relief="raised")
	l3.pack(side="top")
	e3=tk.Entry(loginwn,show="*")
	e3.pack(side="top")
	b=tk.Button(loginwn,text="Submit",command=lambda: check_log_in(loginwn,e1.get().strip(),e2.get().strip(),e3.get().strip()))
	b.pack(side="top")
	b1=tk.Button(text="HOME",font=("Times",16),relief="raised",bg="blue4",fg="white",command=lambda: home_return(loginwn))
	b1.pack(side="top")
	loginwn.bind("<Return>",lambda x:check_log_in(loginwn,e1.get().strip(),e2.get().strip(),e3.get().strip()))
	

def Create():
	
	crwn=tk.Tk()
	crwn.geometry("600x300")
	crwn.title("Create Account")
	crwn.configure(bg="SteelBlue1")
	fr1=tk.Frame(crwn,bg="blue")
	l_title=tk.Message(crwn,text="BANK MANAGEMENT SYSTEM",relief="raised",width=2000,padx=600,pady=0,fg="white",bg="blue4",justify="center",anchor="center")
	l_title.config(font=("Arial","50","bold"))
	l_title.pack(side="top")
	l1=tk.Label(crwn,text="Enter Name:",font=("Times",16),relief="raised")
	l1.pack(side="top")
	e1=tk.Entry(crwn)
	e1.pack(side="top")
	l2=tk.Label(crwn,text="Enter opening credit:",font=("Times",16),relief="raised")
	l2.pack(side="top")
	e2=tk.Entry(crwn)
	e2.pack(side="top")
	l3=tk.Label(crwn,text="Enter desired PIN:",font=("Times",16),relief="raised")
	l3.pack(side="top")
	e3=tk.Entry(crwn,show="*")
	e3.pack(side="top")
	b=tk.Button(crwn,text="Submit",font=("Times",16),command=lambda: write(crwn,e1.get().strip(),e2.get().strip(),e3.get().strip()))
	b.pack(side="top")
	crwn.bind("<Return>",font=("Times",16),command=lambda x:write(crwn,e1.get().strip(),e2.get().strip(),e3.get().strip()))
	return


def Main_Menu():
	rootwn=tk.Tk()
	rootwn.geometry("1600x500")
	rootwn.title("Bank Management System - 	CopyAssignment")
	rootwn.configure(background='SteelBlue1')
	fr1=tk.Frame(rootwn)
	fr1.pack(side="top")
	l_title=tk.Message(text="BANK MANAGEMENT SYSTEM ",relief="raised",width=2000,padx=600,pady=0,fg="white",bg="blue4",justify="center",anchor="center")
	l_title.config(font=("Verdana","40","bold"))
	l_title.pack(side="top")
	imgc1=tk.PhotoImage(file="new.gif")
	imglo=tk.PhotoImage(file="login.gif")
	imgc=imgc1.subsample(2,2)
	imglog=imglo.subsample(2,2)

	b1=tk.Button(image=imgc,command=Create)
	b1.image=imgc
	b2=tk.Button(image=imglog,command=lambda: log_in(rootwn))
	b2.image=imglog
	img6=tk.PhotoImage(file="quit.gif")
	myimg6=img6.subsample(2,2)

	b6=tk.Button(image=myimg6,command=rootwn.destroy)
	b6.image=myimg6
	b1.place(x=800,y=300)
	b2.place(x=800,y=200)	
	b6.place(x=920,y=400)

	rootwn.mainloop()

Main_Menu()

 

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Write, Run & Share Python code online using OneCompiler's Python online compiler for free. It's one of the robust, feature-rich online compilers for python language, supporting both the versions which are Python 3 and Python 2.7. Getting started with the OneCompiler's Python editor is easy and fast. The editor shows sample boilerplate code when you choose language as Python or Python2 and start coding.

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OneCompiler's python online editor supports stdin and users can give inputs to programs using the STDIN textbox under the I/O tab. Following is a sample python program which takes name as input and print your name with hello.

import sys
name = sys.stdin.readline()
print("Hello "+ name)

About Python

Python is a very popular general-purpose programming language which was created by Guido van Rossum, and released in 1991. It is very popular for web development and you can build almost anything like mobile apps, web apps, tools, data analytics, machine learning etc. It is designed to be simple and easy like english language. It's is highly productive and efficient making it a very popular language.

Tutorial & Syntax help

Loops

1. If-Else:

When ever you want to perform a set of operations based on a condition IF-ELSE is used.

if conditional-expression
    #code
elif conditional-expression
    #code
else:
    #code

Note:

Indentation is very important in Python, make sure the indentation is followed correctly

2. For:

For loop is used to iterate over arrays(list, tuple, set, dictionary) or strings.

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mylist=("Iphone","Pixel","Samsung")
for i in mylist:
    print(i)

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while condition  
    #code 

Collections

There are four types of collections in Python.

1. List:

List is a collection which is ordered and can be changed. Lists are specified in square brackets.

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mylist=["iPhone","Pixel","Samsung"]
print(mylist)

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Tuple is a collection which is ordered and can not be changed. Tuples are specified in round brackets.

Example:

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print(myTuple)

Below throws an error if you assign another value to tuple again.

myTuple=("iPhone","Pixel","Samsung")
print(myTuple)
myTuple[1]="onePlus"
print(myTuple)

3. Set:

Set is a collection which is unordered and unindexed. Sets are specified in curly brackets.

Example:

myset = {"iPhone","Pixel","Samsung"}
print(myset)

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Example:

mydict = {
    "brand" :"iPhone",
    "model": "iPhone 11"
}
print(mydict)

Supported Libraries

Following are the libraries supported by OneCompiler's Python compiler

NameDescription
NumPyNumPy python library helps users to work on arrays with ease
SciPySciPy is a scientific computation library which depends on NumPy for convenient and fast N-dimensional array manipulation
SKLearn/Scikit-learnScikit-learn or Scikit-learn is the most useful library for machine learning in Python
PandasPandas is the most efficient Python library for data manipulation and analysis
DOcplexDOcplex is IBM Decision Optimization CPLEX Modeling for Python, is a library composed of Mathematical Programming Modeling and Constraint Programming Modeling