python exit program gracefully

followed by the statement, you can directly change a variableQ (uit), exit debugFind it interesting to debug a program at the command line, record it and share it. W, Print a stack trace, with the most recent frame at the bottom. An arrow indicates the ' Current frame ', which determines the context of the most commands. ' BT ' is a alias for this command. D, Move the current frame one level down in the st

, you can directly change a variableQ (uit), exit debugFind it interesting to debug a program at the command line, record it and share it.W, Print a stack trace, with the most recent frame at the bottom. An arrow indicates the ' Current frame ', which determines the context of the most commands. ' BT ' is a alias for this command.D, Move the current frame one level down in the stack trace(to a newer frame).

Reply content:I think you are using notepad++ to write the code, save the file in. py format, and then double-click the file to execute it. In fact notepad++ has a lot of powerful features, as long as you have the patience to explore. Your problem can be solved like this: 1. After writing the program, run F5 directly inside the notepad++, the following dialog box appears 2. Enter cmd/k x: CD "$ (current_directory)"

# Author:eric Zhao#-*-Coding:utf-8-*-"Demand:After you start the program, let the user enter the payroll, and then print the list of itemsAllow users to purchase items based on their product numberAfter the user selects the product, checks whether the balance is enough, enough on the direct debit, enough to remindCan exit at any time, when you exit, print the pur

(item[' Times']) + 1 About #Exit For Loop, continue to enter user name the Break the Else: the Print("User is locked") + Break - Else: the Print('user name does not exist')Bayi Else: theFlag =False the - #Finally, the user information is written to the file - #Working with Strings theResult_info ="' the forIteminchuser_d

This code is written on Linux and is suitable for several commands that need to be changed under Linux,windows. 1, the client input IP, port, can be connected to the server side, is required to enter a user name and password to verify. 2, using a separate module to verify the login user (limited technology, do not support client-created users), user name: ftpuser Password: userlogin 2. After successful client login verification, can I use? Or help view the commands you can use. ftpserver.pyCopy

(product_list): #高校地找出下标, enumerate this good, subscript, project content $ #print (Product_list.index (item), item) $ print (Index,item) - User_choice = input ("Choose what you want to buy?") >>>: ") - if User_choice.isdigit (): the user_choice = Int (user_choice) - If User_choice Wuyi P_item = Product_list[user_choice] the if p_item[1] - shopping_list.append (P_item) Wu Salary-= p_item[1] - print ("Added%s into shopping cart,your current balance is \033[31;1m%s\033[0m"% (p_item,salary)) #\03

abovec.notebookapp.ip= ' * ' C.notebookapp.password = U ' sha1:f9030dd55bce:75fd7bbaba41be6ff5ac2e811b62354ab55b1f63 ' C. Notebookapp.open_browser = Falsec.NotebookApp.port =8888Save exit.4) Start Jupyter$jupyter Notebook--allow-root　　On the remote computer, open the browser and enter:http://your-server-ip:8888Need to enter a password, that is the password set above, input can4. Start$ Pyspark_driver_python=ipython pyspark_driver_python_opts= "Notebo

Program Exercise: Shopping Cart ProgramRequirements:1. After starting the program, let the user enter the payroll and then print the list of items2. Allow users to purchase items based on their product number3. After the user selects the product, checks whether the balance is enough, enough on the direct debit, enough to remind4. Can exit at any time, when you

1 #Author:johnson2 3 #After you start the program, let the user enter the payroll, and then print the list of business ports4 #allows users to buy items based on their product number, put them into a shopping cart, and use wages minus the price of the commodity. 5 #Press the Q key to exit the program and output the selected goods and payroll balances. 6sp_list=[7

ifMoney_of_guest ]: - Print("your balance is not sufficient to purchase this item, please select another item or enter Q to exit") - Else: - Print("added {name_of_product} to your shopping cart". Format (name_of_product=list_of_product[num_product][0])) -Money_of_guest = money_of_guest-list_of_product[num_product][1] - Print("your balance also has {B}". Format (b=money_of_guest),

theSetup ()andFinish ()methods, and provideSelf.rfileandSelf.wfileAttributes.Self.rfileandSelf.wfileCan is read or written, respectively, to get the request data or return data to the Client. Note that point 2,with respect to the Setdaemon property of the thread object, True indicates that the server thread is a background thread, and when no activity is connected to the background thread, the program executes automatically exits, and when th

This article describes the Python implementation of a simple reversible encryption program. Share to everyone for your reference. Specifically as follows: The Python code is as follows: Copy Code code as follows: #coding =utf-8 ''''' Description: Reversible encryption and decryption environment:python2.5.x Author:idehong@gmail.com ''' Import OS

Write a shopping cart program in python1. You are not required to enter the item to determine whether the user has an amount. 2. The item list is displayed. You can enter the item number, shopping cart display, balance display, and settlement as needed; 3. (1): Enter "free" to display the remaining user amount. (2) Enter "list" to display the shopping cart list. (3) Enter "all" to settle the account. settlement: 1. check whether there are items in the

0, the second column index is the password #split () method is the delimiter, the default is a space, I =I.split ()ifusername==i[0]: #用户名正确 #用户名正确的时候, give only 3 times the opportunity to enter the password forXinchRange3): Password= Raw_input ('Password:'). Strip ()ifpassword==i[1]: loginsucess=true# If true, go straight to the if of the superior for, exit when you're done . Break#如果密码错误 #如果匹配正确或循环中有break就退出, else do not executeElse: Print'%s,

My boss was unable to visit the Teaching and Research Section frequently due to busy tasks. So I asked him to build a monitoring system so that he could see the number of students in the office. O (> others My idea was to go directly to the next software on the Internet, but it was not toxic or paid to find it, but the technology could not be cracked, so I had to find another method. When there is no way, I can see a blog post. After reading this article, I feel that I can write it myself. I wo

Program: Shopping Cart ProgramDemand: After you start the program, let the user enter the payroll, and then print the list of items Allow users to purchase items based on their product number After the user selects the product, checks whether the balance is enough, enough on the direct debit, enough to remind You can exit at any time to print

extension number, calculated and then calculate the multiplication, and then add and subtract" while true:formula_depth = Re.search ("\ ([^ ( )]+\) ", formula) if Formula_depth:formula_depth=formula_depth.group () Res=bracket_calc (formu la_depth) forMula=formula.replace (Formula_depth,str (res)) print ("\33[34;1m%s\33[0m"% (Formula)) Else:res = Bracket_calc (Formula) print ("\33[31;1m result:%s\33[0m"% (res)) exit () if __name__ = = ' __main__ ': fo

]) ifPrice balance:balance-=Price shopping_car.append (Menu[choice-1]) Print("has been added"+ str (menu[choice-1][0]) +"to your shopping cart, balance"+ str (balance) +". Please continue shopping. ") Else: Print("Insufficient Balance"+ STR (balance-price) +"Please re-select. ") elifChoice = ="Q": Print("you have purchased the following items") forIinchRange (0, Len (shop

In Pycharm, when editing a program, often the code is correct, but do not know where the error, here in the following example to illustrate the importance of code format in the Pycharm. Title: Write a function, accept a positive even number as a parameter, output 2 prime numbers, and the sum of these 2 primes equals the original positive even, there are many groups of eligible primes, then all output. Import Math def isprime (n): m=int (MATH.SQRT