I am trying to code something basic in python just for fun and I encountered an issue,
# Employee is a class with the initialization being self, name, status
e1 = Employee("Tom, Lincoln", "Present")
e2 = Employee("Sam, Bradley", "Absent")
print(e1.status)
# printing e1 status will make "Present" or "Absent"
while True:
try:
cmd = input("Cmd: ")
if cmd == "status_check":
who = input("Who: ")
# putting in e1 or e2 will get their respective statuses
I've tried everything I can think off like, making it so that it gets a number out of the input("Who: ") input so I can better use eval or exac, but doing that makes it so I cant run e1.status because all it has is a 1 and I can't make a "e" appear in front of it so I can't run e1.status. I've also tried using just eval or exac but that didn't get the wanted result because I would have to type my code in the input("Cmd: "). That's isn't the only things I've tried but those are some that come to mind.
I'm just stumped here.
If you want to map names to values, you don't want separate variables. You want a dictionary.
Rather than
e1 = Employee("Tom, Lincoln", "Present")
e2 = Employee("Sam, Bradley", "Absent")
Consider
employees = {
'e1': Employee("Tom, Lincoln", "Present"),
'e2': Employee("Sam, Bradley", "Absent"),
}
To access an employee, write
print(employees["e1"].status)
and then you can use the input string to subscript employees as well.
who = input("Who: ")
print(employees[who].status)
one other approach is to use sys module:
import sys
# class definitions etc
while True:
try:
cmd = input("Cmd: ")
if cmd == "status_check":
who = input("Who: ")
atr = getattr(sys.modules[__name__], who)
print(atr.status)
Related
I have created a class with programs:
class Program:
def __init__(self,channel,start, end, name, viewers, percentage):
self.channel = channel
self.start = start
self.end = end
self.name = name
self.viewers = viewers
Channel 1, start:16.00 end:17.45 viewers: 100 name: Matinee:The kiss on the cross
Channel 1, start:17.45 end:17.50 viewers: 45 name: The stock market today
Channel 2, start:16.45 end:17.50 viewers: 30 name: News
Channel 4, start:17.25 end:17.50 viewers: 10 name: Home building
Channel 5, start:15.45 end:16.50 viewers: 28 name: Reality
I also have created a nested list with the programs:
[[1,16:00, 17,45, 100, 'Matinee: The kiss on the cross'],[1,17:45, 17,50, 45,'The stock market today'],[2,16:45, 17,50, 30,'News'], [4,17:25, 17,50, 10,'Home building'],[5,15:45, 16,50, 28,'Reality']
Now we want the user to be able to write the name of a program:
News
The result should be:
News 19.45-17.50 has 30 viewers
I thought about how you could incorporate a method to avoid the program from crashing if the input is invalid/ not an instance variable
I have tried this:
Check_input():
print('Enter the name of the desired program:')
while True: #Continue asking for valid input.
try:
name = input('>')
if name == #is an instance?
return name
else:
print('Enter a program that is included in the schedule:') #input out of range
except ValueError:
print('Write a word!') #Word or letter as input
print('Try again')
I wonder if I should separate all the program-names from the nested list and check if the user enters a name in the list as input? (Maybe by creating a for-loop to iterate over?)
I also have a question regarding how to print out the selected program when the user enters the correct name? I understand how to rearrange them into the correct order to create the sentence. However, I don't know how to access the correct program in the "memory"
Do you have any suggestions how to combat the problem?
All help is much appreciated!
I wonder if I should separate all the program-names from the nested list and check if the user enters a name in the list as input? (Maybe by creating a for-loop to iterate over?)
Well if all your programs have a unique name then the easiest approach would probably be to store them in a dictionary instead of a nested list like:
programs = {
"News": Program("2", "16:45", "17:50", "News", "30", "60"),
"Reality": <Initialize Program class object for this program>,
...
}
Then you could just use the get dictionary method (it allows you to return a specific value if the key does not exist) to see if the asked program exists:
name = input('>')
program = programs.get(name, None)
if program:
print(program)
else:
# raise an exception or handle however you prefer
And if your programs don't have a unique name then you will have to iterate over the list. In which case I would probably return a list of all existing objects that have that name. A for loop would work just fine, but I would switch the nested list with a list of Program objects since you already have the class.
I also have a question regarding how to print out the selected program when the user enters the correct name? I understand how to rearrange them into the correct order to create the sentence. However, I don't know how to access the correct program in the "memory" Do you have any suggestions how to combat the problem.
I would say that the most elegant solution is to override the __str__ method of your Program class so that you can just call print(program) and write out the right output. For example:
class Program:
def __init__(self,channel,start, end, name, viewers, percentage):
self.channel = channel
self.start = start
self.end = end
self.name = name
self.viewers = viewers
def __str__(self):
return self.name + " " + self.start + "-" + self.end + " has " + self.viewers + " viewers"
should print out
News 19.45-17.50 has 30 viewers
when you call it like:
program = programs.get(name, None)
if program:
print(program)
Hi guys hope u are doing well, i'm new with python :)
so i have two issues the first how can i use the variable name from the init to my function game() which it use two args (those args whose make it realy difficult for me !) as u can see in code bellow:
# FUNCTION.py
class penGame():
def __init__(self):
print("Welcome to Pendu Game")
self.name = input("Enter your name: ") # IMPORT THIS VARIABLE FROM HERE
def game(self, letter, rword):
letter = letter.lower()
if letter in rword:
for Id, Value in enumerate(rword):
if Value == letter:
donnee.default_liste[Id] = letter
else:
name2 = self.name # it deosn't work i got 1 missing arg when i run the code from MAIN.py
print(f"try again {name} it's wrong ")
print("-".join(donnee.default_liste))
The second issue is i need to use the same variable (name) from init in another module which is my main module and i couldn't use it cause i tried to create an object from class penGame() like:
myObject = penGame()
name2 = myObject.name
then use the name2 inside of the if condition as u can see bellow but it doesn't work properly cause it run the init again which is not what i want actualy !
any idea how can i did it plz?
#MAIN.py
import donnee
from fonctions import penGame
random_word = random.choice(donnee.liste_words) # creation of random word from liste_words
penGame() #call the constructor
while donnee.counter < donnee.score:
letter = input("Enter the letter: ")
if penGame.check(letter):
print("You cant use more one letter or numbers, try again !")
else:
penGame.game(letter, random_word) # as u can see that's the reason cause i supposed to send 3 args instead of two ! but i only need those two !!?
if penGame.check_liste():
myObject = penGame() # that's cause runing the init everytime !!
name2 = myObject.name
print(f"congratulation {name2} you've guessed the word, your score is: {donnee.choice-donnee.counter} point.")
break
if penGame.loser():
print(f"the word was {random_word.upper()} you have done your chances good luck next time.")
donnee.counter += 1
Thank u in advance hope u help me with that and excuse my english if it wasn't that good :) :)
1.Error
You're calling the methods on the class penGame, not on a instance of penGame.
This causes your missing argument error because the method needs an instance of the class (the self parameter) but don't get one.
Instead use your variable (from the second solution):
if mygame.check(letter):
print("You cant use more one letter or numbers, try again !")
else:
mygame.game(letter, random_word)
...
Replace penGame with mygame also in the other calls.
Error
Save the result of the call in a variable and you won't need to recreate it.
mygame = penGame() # call the constructor
This line can then be removed:
myObject = penGame() # that causes the init to run again because it creates a new instance!
item =["Item_name","Price"]
stop = input("Enter your message: ")
if stop[:3] == "add":
item2 = stop[4:]
I have a code something like this and I want to get the variable item based on a user input. For example, the user types inputs "add item", it should output item[0] and item[1], but I don't know how to do it.
Breaking it down into small pieces is the easiest way to keep it from getting out of hand when you need to add more commands -- trying to parse a command string with slices is going to get complicated quickly! Instead, try splitting the command into words, and then associating each word with the thing you want to do with it.
from enum import Enum
from typing import Callable, Dict
class Command(Enum):
"""All the commands the user might input."""
ADD = "add"
# other commands go here
class Parameter(Enum):
"""All the parameters to those commands."""
ITEM = "item"
# other parameters go here
item = ["Item_name","Price"]
def add_func(param: Parameter) -> None:
"""Add a thing."""
if param == Parameter.ITEM:
print(item)
COMMAND_FUNCS: Dict[Command, Callable[[Parameter], None]] = {
"""The functions that implement each command."""
Command.ADD: add_func,
}
# Get the command and parameter from the user,
# and then run that function with that parameter!
[cmd, param] = input("Enter your message: ").split()
COMMAND_FUNCS[Command(cmd)](Parameter(param))
I have been working on this one program for hours now and I am still having no luck. I am trying to create a "search engine" where you can look products with a SKU number.
class SKU:
def __init__(self, name, product):
self.name = name
self.product = product
def displaySKU(self):
print "Sku Number : ", self.name, ", Product: ", self.product
sku90100 = SKU("90100", "10310, 00310")
sku90101 = SKU("90101", "10024, 00024")
sku90102 = SKU("90102", "10023")
sku90103 = SKU("90103", "10025")
sku90104 = SKU("90104", "10410")
search = input("Please type SKU Number")
if search in range(90100, 90106):
"sku",search.displaySKU
My problem is that I can't seem to get display the SKU information; I have tried removing, changing, and adding characters to the variables without success. I may have missed something thou, but all I now is that nothing that I try works. Please help me figure this out, and thank you for taking the time to read my question.
Instead of storing each product as its own variable, use a dict:
skus = {}
skus[90100] = SKU("90100", "10310, 00310")
skus[90101] = SKU("90101", "10024, 00024")
skus[90102] = SKU("90102", "10023")
skus[90103] = SKU("90103", "10025")
skus[90104] = SKU("90104", "10410")
Then you can check membership using in, and call the .displaySKU() method to print:
if search in skus:
skus[search].displaySKU()
Lastly, for Python 2, it's preferred to use raw_input instead of input. raw_input gives you a string though, so you want to convert that to an int to match your skus keys:
search = int(raw_input("Please type SKU Number"))
Just started learning python (3.2) and have a question. I have created a some code that creates some stats (as in health, magic etc etc) and the numbers are randomly generated. Here is the code...
def stats ():
print ()
print ('Some text.')
done = False
while not done :
charname = input(str('What is the name of the character? '))
hp = random.randint(5,20)
mp = random.randint(4,20)
stre = random.randint(3,20)
agi = random.randint(3,20)
spd = random.randint(3,20)
wis = random.randint(3,20)
intel = random.randint(3,20)
cha = random.randint(3,20)
print (charname)
print ('HP:',hp)
print ('Mana:',mp)
print ('Strength:',stre)
print ('Agility:',agi)
print ('Speed:',spd)
print ('Wisdom:',wis)
print ('Intelligence:',intel)
print ('Charisma:',cha)
print ()
done = input('All done? yes/no ')
if( done == 'yes' ):
done = True
elif(done == 'no'):
done = False
while done :
print ()
print ('Now that your stats are done, you can go on your adventure!')
done = False
Now this works fine, but how could I call on this function again in case I wanted to view the stats again with it keeping the same stats it randomly generated before?
Sorry if the question is bit off. Still all new to programming.
Thank you.
Since you're new to programming, here's some advice on a different way to store your data (without actually coding it for you).
First, define a Character class, with attributes for HP, mana, etc. I don't know if you know about classes yet, but here's an intro. There are various tricks you can do to get around having to explicitly write in the names for HP, mana, etc, but for learning's sake, it's probably better to do them all manually for now.
Then def a random_character() function that creates a Character object with random attributes, defined like how you're doing now, but instead of saving them in different variables that Python doesn't know have anything to do with one another, puts them in a single Character.
Add a __str__ method to the Character class, so that if char is a Character, print(char) prints out the attributes.
If you want to be able to keep track of characters, use pickle to store it in files.
If you have questions about any part of this, just ask. :)
Your function now uses local variables to record the stats you've generated. You'll need to bundle them together into either a dictionary or an object so that you can pass them around as a value.
For example:
def get_stats():
stats = {}
stats['charname'] = input(str('What is the name of the character? '))
stats['hp'] = random.randint(5,20)
stats['mp'] = random.randint(4,20)
stats['stre'] = random.randint(3,20)
stats['agi'] = random.randint(3,20)
stats['spd'] = random.randint(3,20)
stats['wis'] = random.randint(3,20)
stats['intel'] = random.randint(3,20)
stats['cha'] = random.randint(3,20)
return stats
def print_stats(stats):
print (stats['charname'])
print ('HP:',stats['hp'])
print ('Mana:',stats['mp'])
print ('Strength:',stats['stre'])
print ('Agility:',stats['agi'])
print ('Speed:',stats['spd'])
print ('Wisdom:',stats['wis'])
print ('Intelligence:',stats['intel'])
print ('Charisma:',stats['cha'])
print ()
you can use def keyword to declare functions . Def
def stat():
you can call the function like this in your desired location. stat()
If you want easy storage in an external file, you can use the pickle module, and a dictionary of the values you wish to store.
for example:
import pickle
stats={}
stats['hp'] = random.randint(5,20)
stats['mp'] = random.randint(4,20)
stats['stre'] = random.randint(3,20)
stats['agi'] = random.randint(3,20)
stats['spd'] = random.randint(3,20)
stats['wis'] = random.randint(3,20)
stats['intel'] = random.randint(3,20)
stats['cha'] = random.randint(3,20)
#save the stats into the file by using:
pickle.dump(stats,yourstatfile.pkl)
#then to load it again from any program just use:
stats=pickle.load(yourstatfile.pkl) #you assign it to a variable, so if i used the variable 'lol' i would use it as lol['hp'] not stats['hp'] like it was originally used when saving.
#then you can use it just like any other dictionary:
print "your hp: "+str(stats['hp'])