in tkinter how do i get a number into an entry - python

Im a beginner in Python and running into the following problem:
for an assignment i need to get the number that gets inserted into text1, then when i push the button pk<<<kw multiply it by 1.36 and insert it into text2. and reverse by pressing the other button.
only i have no clue how.
from tkinter import *
root= Tk()
root.title("python programma omrekenen")
root.geometry("300x200")
def Iets():
label = Label(text="vermogen in pk:")
label.place(x=50,y=50)
text1=IntVar()
entry1=Entry(textvariable=text1)
entry1.place(x=150,y=50)
x1=text1.get()
def Functie 10:
def Functie 11:
button=Button (text="PK>>>KW", command=Functie10)
button.place (x=50,y=100)
button=Button (text="PK<<<KW", command=functie11)
button.place (x=150,y=150)
label = Label(text="vermogen in KW:")
label.place(x=50,y=150)
text2=IntVar()
entry2=Entry(textvariable=text2)
entry2.place(x=150,y=150)
x2=text2.get()
root.mainloop()
sorry for the bad english


That little code should hopefully help you out :
from tkinter import *
root = Tk()
root.title("python programma omrekenen")
root.geometry("300x200")
def Iets():
Entry1 = Entry(root, bd=4)
Entry1.grid(row=1, column=2)
Entry1.delete(0, END)
Entry1.insert(0, "Insert number")
Entry2 = Entry(root, bd=4)
Entry2.grid(row=2, column=2)
Entry2.insert(0, "Result")
def multiply(entry: int):
if entry == 1:
Entry2.delete(0, END)
try:
Entry2.insert(0, f"{int(Entry1.get()) * 2}")
except ValueError:
Entry2.insert(0, f"Invalid value")
Entry1.delete(0, END)
if entry == 2:
Entry1.delete(0, END)
try:
Entry1.insert(0, f"{int(Entry2.get()) * 2}")
except ValueError:
Entry1.insert(0, f"Invalid value")
Entry2.delete(0, END)
Button1 = Button(root, text='Multiply', bd=2, bg='green', command=lambda: multiply(1))
Button1.grid(row=1, column=1)
Button2 = Button(root, text='Multiply', bd=2, bg='green', command=lambda: multiply(2))
Button2.grid(row=2, column=1)
Iets()
root.mainloop()
Not sure if thats what you ment by reverse it but yeah.. its easy to understand so you should be fine !


command is used to call a function.
In your case , it does a multiplication on a number and gets inserted into an entry field.
Also , delete & insert are 2 tkinter methods clear & insert the data respectively
from tkinter import *
root= Tk()
root.title("python programma omrekenen")
root.geometry("300x400")
text1=IntVar()
text2=IntVar()
def first():
entry2.delete(0,END)
entry2.insert(0,text1.get()*1.36)
def second():
entry1.delete(0,END)
entry1.insert(0,text2.get()*1.36)
label = Label(text="vermogen in pk:")
label.place(x=50,y=50)
entry1=Entry(textvariable=text1)
entry1.place(x=150,y=50)
button=Button (text="PK>>>KW", command=first)
button.place (x=50,y=100)
button=Button (text="PK<<<KW", command=second)
button.place (x=50,y=200)
label = Label(text="vermogen in KW:")
label.place(x=50,y=150)
entry2=Entry(textvariable=text2)
entry2.place(x=150,y=150)
root.mainloop()

Related

Code not performing numerical calculation from what it is obtaining from the entry box

I am learning tkinter GUI development and trying to build an app that converts currency by manually entering exchange rate for now. At the moment I am stuck with the following error when i press the convert button on the GUI of my program.
Traceback (most recent call last):
File "C:\Users\USER\AppData\Local\Programs\Python\Python39\lib\tkinter\__init__.py", line 1892, in __call__
return self.func(*args)
File "c:\Akshit\Currency converter\main.py", line 17, in conversion_logic
cvalue_tbci = float(cvalue_tbc) * 1.3930973
ValueError: could not convert string to float: ''
Here is my code, it has some other entry-boxes which I plan to use for choosing specific currencies, once my code is up and running, for now it is commented out.
from tkinter import *
from tkinter.ttk import *
#window sizing and background
root= Tk()
root.title("Currency Converter")
root.state("zoomed")
#styles
style = ttk.Style()
style.configure("TEntry", foreground="black", background="#ffffff")
#functions for the logic
def conversion_logic():
cvalue_tbci = float(cvalue_tbc) * 1.3930973
currency_tbci_display_box = Label(root, borderwidth=3, relief="sunken", width=85, anchor="center", text=cvalue_tbci)
currency_tbci_display_box.grid(ipadx=5, ipady=2, row=46, column=10)
#what each widget will do
#currency_tbc_entry = Entry(root, width=73, justify="center", style="TEntry")
#currency_tbc_entry.insert(0, "Please choose currency to be converted: USD, AUD, INR, MYR, GBP, EUR, JPY, CNY")
#currency_tbc = currency_tbc_entry.get()
currency_tbc_value = Entry(root, width=45, justify="center", style="TEntry")
cvalue_tbc = currency_tbc_value.get()
#currency_tbci_entry = Entry(root, width=73, justify="center", style="TEntry")
#currency_tbci_entry.insert(0, "Please choose currency to be converted in: USD, AUD, INR, MYR, GBP, EUR, JPY, CNY")
#currency_tbci = currency_tbci_entry.get()
currency_tbci_display_label = Label(root, borderwidth=2, relief="ridge", text="The value currency to be converted in will display here", anchor="center")
Convert_button = Button(root, text="CONVERT", width=20, command=conversion_logic)
#placing the widgets
#currency_tbc_entry.grid(ipady=5, ipadx=5, row=15, column= 9)
currency_tbc_value.grid(ipadx=5, ipady=5, row=17, column=10)
#currency_tbci_entry.grid(ipady=5, ipadx=5, row=15, column=15)
currency_tbci_display_label.grid(ipadx=20, ipady=5, row=38, column=10)
Hope this information is enough to solve my problem.
Thanks in advance

Since you called cvalue_tbc = currency_tbc_value.get() just after currency_tbc_value is created, you will get empty string because no input has yet been input.
You need to call cvalue_tbc = currency_tbc_value.get() inside conversion_logic() instead:
def conversion_logic():
try:
cvalue_tbc = currency_tbc_value.get()
cvalue_tbci = float(cvalue_tbc) * 1.3930973
currency_tbci_display_box = Label(root, borderwidth=3, relief="sunken", width=85, anchor="center", text=cvalue_tbci)
currency_tbci_display_box.grid(ipadx=5, ipady=2, row=46, column=10)
except ValueError:
print(f'Invalid value input: "{cvalue_tbc}"')
Note that I have used try/except to cater invalid input.

I cant generate a random number and print it

I can't generate the number because I get the error NameError: name 'z' is not defined.
import tkinter as tk
from random import randint
def randomize():
z.set ( randint(x.get(),y.get()))
root = tk.Tk()
x = tk.IntVar()
y = tk.IntVar()
text= tk.Label(root, text = "press the button for random number")
enterX = tk.Entry(root)
enterY = tk.Entry(root)
button = tk.Button(root, text = "Press here", command=randomize)
result = tk.Label(root,text="Number is:")
number = tk.Label(root, textvariable=z)
text.pack()
enterX.pack()
enterY.pack()
button.pack()
result.pack()
number.pack()
root.mainloop()
I need help to resolve the error

You have 2 problems here.
One. You are missing z = tk.Intvar() in the global namespace.
Two. You need to assign each entry field one of the IntVar()'s.
Keep in mind that you are not validating the entry fields so if someone types anything other than a whole number you will run into an error.
Take a look at this code.
import tkinter as tk
from random import randint
def randomize():
z.set(randint(x.get(),y.get()))
print(z.get()) # added print statement to verify results.
root = tk.Tk()
x = tk.IntVar()
y = tk.IntVar()
z = tk.IntVar() # added IntVar()
text= tk.Label(root, text = "press the button for random number")
enterX = tk.Entry(root, textvariable=x) # added textvariable
enterY = tk.Entry(root, textvariable=y) # added textvariable
button = tk.Button(root, text = "Press here", command=randomize)
result = tk.Label(root,text="Number is:")
number = tk.Label(root, textvariable=z)
text.pack()
enterX.pack()
enterY.pack()
button.pack()
result.pack()
number.pack()
root.mainloop()

An unexpected window appears in tkinter python

I made a separate file called clinic1.py for the other code and import it to the main page. Everything works fine however another window appears when I click save button on the add new item page.
When I place all the code on the main page that small window doesn't appear.
I cant find whats causing another window to appear when it's in a separate file.
This is my main page:
from tkinter import *
from tkinter import ttk
import tkinter.messagebox
large_font = ('Verdana',12)
storedusername =['foo'] storedpass=['123'] storedretype=[]
list_of_users=storedusername
list_of_passwords=storedpass
def all_clinic_frames(event):
combo_clinic=combo.get()
if combo_clinic == 'Clinic 1':
enter()
root = Tk()
root.geometry('800x600')
root.title('CSSD')
topFrame=Frame(root,width=800,height=100,padx=310)
area=Label(topFrame,text='CSSD')
area.config(font=("Courier", 50))
frame=Frame(root,highlightbackground="black", highlightcolor="black", highlightthickness=1, width=100, height=100, bd= 0)
frame.place(relx=.5, rely=.5, anchor="center")
username = Label(frame, text='User Name') username.config(font='Arial',width=15) password = Label(frame, text='Password') password.config(font='Arial',width=15) enteruser = Entry(frame, textvariable=StringVar(),font=large_font) enterpass = Entry(frame, show='*', textvariable=StringVar(),font=large_font)
combo_choice=StringVar()
combo=ttk.Combobox(frame,textvariable=combo_choice)
combo['values']=('Clinic 1')
combo.state(['readonly'])
combo.grid(row=0,sticky=NW)
combo.set('Choose Area...')
combo.bind('<<ComboboxSelected>>',all_clinic_frames)
topFrame.grid(row=0,sticky=N) topFrame.grid_propagate(False) area.grid(row=0,column=1,sticky=N) username.grid(row=1, sticky=E) enteruser.grid(row=1, column=1) password.grid(row=2, sticky=E) enterpass.grid(row=2, column=1)
def valid():
usernameRight=enteruser.get()
passwordRight=enterpass.get()
while True:
try:
if (usernameRight==list_of_users[0]) and (passwordRight==list_of_passwords[0]):
import clinic1
clinic1.main_page()
quit()
break
except IndexError:
invalid = Label(frame, text='User name or Password is incorrect!', fg='red')
invalid.grid(row=3, columnspan=2)
break
def enter():
register = Button(frame, text='Sign In',relief=RAISED,fg='white',bg='red',command=valid)
register.grid(row=3,column=1,ipadx=15,sticky=E)
def quit():
root.destroy()
And this is the second file that I imported in the main page which i saved as clinic1.py
from tkinter import*
import tkinter.messagebox
newInstList=[]
def addItem(event=None):
global back_add,quantityentry,itemEntry,itemEntry1,quantityentry1
itemFrameTop=Frame(root, width=800,height=100,bg='pink')
itemFrameTop.grid_propagate(False)
itemFrameTop.grid(row=0)
area1_item = Label(itemFrameTop, text='CSSD', pady=5,padx=230)
area1_item.config(font=("Courier", 30))
area1_item.grid_propagate(False)
area1_item.grid(row=0,column=1,sticky=NE)
clinic_1 = Label(itemFrameTop, text='Clinic 1', bg='red', fg='white', bd=5)
clinic_1.config(font=("Courier", 15))
clinic_1.grid_propagate(False)
clinic_1.grid(row=1, sticky=W,padx=10)
itemFrameMid=Frame(root,width=700,height=600,bg='blue')
itemFrameMid.grid_propagate(False)
itemFrameMid.grid(row=1)
itemname=Label(itemFrameMid,text='Item name:')
itemname.config(font=('Arial,15'))
itemname.grid_propagate(False)
itemname.grid(row=1,sticky=E)
quantity=Label(itemFrameMid,text='Qty:')
quantity.config(font=('Arial,15'))
quantity.grid_propagate(False)
quantity.grid(row=1,column=3, sticky=E,padx=10)
itemEntry=Entry(itemFrameMid)
itemEntry.config(font=('Arial,15'))
itemEntry.grid(row=1,column=1,sticky=EW,padx=30,pady=10)
itemEntry1 = Entry(itemFrameMid)
itemEntry1.config(font=('Arial,15'))
itemEntry1.grid(row=2, column=1)
quantityentry=Entry(itemFrameMid,width=5)
quantityentry.config(font=('Arial',15))
quantityentry.grid(row=1, column=4)
quantityentry1 = Entry(itemFrameMid, width=5)
quantityentry1.config(font=('Arial', 15))
quantityentry1.grid(row=2, column=4,padx=10)
"""When I click save button another small window appears"""
okbutton = Button(itemFrameMid, text='Save', command=saveCheck)
okbutton.config(font=('Arial', 12))
okbutton.grid(row=3, column=4, padx=15)
back_add = Label(itemFrameTop, text='Back')
back_add.config(font=('Courier,15'))
back_add.grid(row=0, sticky=W, padx=30)
back_add.bind('<Button-1>', main_page)
back_add.bind('<Enter>', red_text_back1)
back_add.bind('<Leave>', black_text_back1)
def saveCheck():
saveQuestion=tkinter.messagebox.askquestion('CSSD', 'Are you sure you want to save?')
if saveQuestion == 'yes':
newInstList.append(itemEntry.get())
newInstList.append(quantityentry.get())
newInstList.append(itemEntry1.get())
newInstList.append(quantityentry1.get())
print(newInstList)
main_page()
elif saveQuestion == 'no':
pass
def red_text_back1(event=None):
back_add.config(fg='red')
def black_text_back1(event=None):
back_add.config(fg='black')
def red_text_add(event=None):
addnew.config(fg='red')
def black_text_add(event=None):
addnew.config(fg='black')
def main_page(event=None):
global addnew,usedInst,logOut
frame1 = Frame(root, width=800, height=100,bg='pink')
frame1.grid(row=0, column=0, sticky="nsew")
frame1.grid_propagate(False)
midframe1=Frame(root,width=800,height=600)
midframe1.grid_propagate(False)
midframe1.grid(row=1)
area1 = Label(frame1, text='CSSD',pady=5,padx=350)
area1.config(font=("Courier", 30))
area1.grid(row=0)
clinic1=Label(frame1,text='Clinic 1',bg='red',fg='white',bd=5)
clinic1.config(font=("Courier", 15))
clinic1.grid_propagate(False)
clinic1.grid(row=1,sticky=W,padx=10)
addnew=Label(midframe1,text='+ Add new item')
addnew.config(font=('Arial',15))
addnew.grid(row=2,column=1,sticky=E,ipadx=50)
addnew.bind('<Button-1>', addItem)
addnew.bind('<Enter>', red_text_add)
addnew.bind('<Leave>', black_text_add)
root = Tk()
root.geometry('800x600')

Both files have this line of code:
root = Tk()
Each time you do that, you get another root window. A tkinter application needs to have exactly one instance of Tk running at a time.
You need to remove the last two lines from clinic1.py. You will also need to pass in the reference to root to any methods from clinic1.py that need it.

First file.
from tkinter import *
from tkinter import ttk
import tkinter.messagebox
large_font = ('Verdana',12)
storedusername =['foo']
storedpass=['123']
storedretype=[]
list_of_users=storedusername
list_of_passwords=storedpass
def all_clinic_frames(event):
combo_clinic=combo.get()
if combo_clinic == 'Clinic 1':
enter()
root = Tk()
root.geometry('800x600')
root.title('CSSD')
topFrame=Frame(root,width=800,height=100,padx=310)
area=Label(topFrame,text='CSSD')
area.config(font=("Courier", 50))
frame=Frame(root,highlightbackground="black", highlightcolor="black", highlightthickness=1, width=100, height=100, bd= 0)
frame.place(relx=.5, rely=.5, anchor="center")
myvar=StringVar()
username = Label(frame, text='User Name')
username.config(font='Arial',width=15)
password = Label(frame, text='Password')
password.config(font='Arial',width=15)
enteruser = Entry(frame, textvariable=myvar, font=large_font)
pass1=StringVar()
enterpass = Entry(frame, show='*', textvariable=pass1, font=large_font)
combo_choice=StringVar()
combo=ttk.Combobox(frame,textvariable=combo_choice)
combo['values']=[('Clinic 1')]
combo.state(['readonly'])
combo.grid(row=0,sticky=NW)
combo.set('Choose Area...')
combo.bind('<<ComboboxSelected>>',all_clinic_frames)
topFrame.grid(row=0,sticky=N)
topFrame.grid_propagate(False)
area.grid(row=0,column=1,sticky=N)
username.grid(row=1, sticky=E)
enteruser.grid(row=1, column=1)
password.grid(row=2, sticky=E)
enterpass.grid(row=2, column=1)
def valid():
usernameRight=enteruser.get()
passwordRight=enterpass.get()
while True:
try:
if (usernameRight==list_of_users[0]) and (passwordRight==list_of_passwords[0]):
import clinic1
clinic1.main_page(root)
# quit()
break
except IndexError:
invalid = Label(frame, text='User name or Password is incorrect!', fg='red')
invalid.grid(row=3, columnspan=2)
break
def enter():
register = Button(frame, text='Sign In',relief=RAISED,fg='white',bg='red',command=valid)
register.grid(row=3,column=1,ipadx=15,sticky=E)
def quit():
root.destroy()
root.mainloop()
clinic1.py
from tkinter import*
import tkinter.messagebox
newInstList=[]
def addItem(root, event=None):
global back_add,quantityentry,itemEntry,itemEntry1,quantityentry1
if event is None:
event = Event()
itemFrameTop=Frame(root, width=800, height=100, bg='pink')
itemFrameTop.grid_propagate(False)
itemFrameTop.grid(row=0)
area1_item = Label(itemFrameTop, text='CSSD', pady=5,padx=230)
area1_item.config(font=("Courier", 30))
area1_item.grid_propagate(False)
area1_item.grid(row=0,column=1,sticky=NE)
clinic_1 = Label(itemFrameTop, text='Clinic 1', bg='red', fg='white', bd=5)
clinic_1.config(font=("Courier", 15))
clinic_1.grid_propagate(False)
clinic_1.grid(row=1, sticky=W,padx=10)
itemFrameMid=Frame(root,width=700,height=600,bg='blue')
itemFrameMid.grid_propagate(False)
itemFrameMid.grid(row=1)
itemname=Label(itemFrameMid,text='Item name:')
itemname.config(font=('Arial,15'))
itemname.grid_propagate(False)
itemname.grid(row=1,sticky=E)
quantity=Label(itemFrameMid,text='Qty:')
quantity.config(font=('Arial,15'))
quantity.grid_propagate(False)
quantity.grid(row=1,column=3, sticky=E,padx=10)
itemEntry=Entry(itemFrameMid)
itemEntry.config(font=('Arial,15'))
itemEntry.grid(row=1,column=1,sticky=EW,padx=30,pady=10)
itemEntry1 = Entry(itemFrameMid)
itemEntry1.config(font=('Arial,15'))
itemEntry1.grid(row=2, column=1)
quantityentry=Entry(itemFrameMid,width=5)
quantityentry.config(font=('Arial',15))
quantityentry.grid(row=1, column=4)
quantityentry1 = Entry(itemFrameMid, width=5)
quantityentry1.config(font=('Arial', 15))
quantityentry1.grid(row=2, column=4,padx=10)
"""When I click save button another small window appears"""
okbutton = Button(itemFrameMid, text='Save', command=lambda: saveCheck(root))
okbutton.config(font=('Arial', 12))
okbutton.grid(row=3, column=4, padx=15)
back_add = Label(itemFrameTop, text='Back')
back_add.config(font=('Courier,15'))
back_add.grid(row=0, sticky=W, padx=30)
back_add.bind('<Button-1>', main_page)
back_add.bind('<Enter>', red_text_back1)
back_add.bind('<Leave>', black_text_back1)
def saveCheck(root):
saveQuestion=tkinter.messagebox.askquestion('CSSD', 'Are you sure you want to save?')
if saveQuestion == 'yes':
newInstList.append(itemEntry.get())
newInstList.append(quantityentry.get())
newInstList.append(itemEntry1.get())
newInstList.append(quantityentry1.get())
print(newInstList)
main_page(root)
elif saveQuestion == 'no':
pass
def red_text_back1(event=None):
back_add.config(fg='red')
def black_text_back1(event=None):
back_add.config(fg='black')
def red_text_add(event=None):
addnew.config(fg='red')
def black_text_add(event=None):
addnew.config(fg='black')
def main_page(root):
global addnew,usedInst,logOut
frame1 = Frame(root, width=800, height=100,bg='pink')
frame1.grid(row=0, column=0, sticky="nsew")
frame1.grid_propagate(False)
midframe1=Frame(root,width=800,height=600)
midframe1.grid_propagate(False)
midframe1.grid(row=1)
area1 = Label(frame1, text='CSSD',pady=5,padx=350)
area1.config(font=("Courier", 30))
area1.grid(row=0)
clinic1=Label(frame1,text='Clinic 1',bg='red',fg='white',bd=5)
clinic1.config(font=("Courier", 15))
clinic1.grid_propagate(False)
clinic1.grid(row=1,sticky=W,padx=10)
addnew=Button(midframe1,text='+ Add new item', font=('Arial', 15), command=lambda: addItem(root))
addnew.grid(row=2,column=1,sticky=E,ipadx=50)
# addnew.bind('<Button-1>', lambda r=root: addItem(r))
addnew.bind('<Enter>', red_text_add)
addnew.bind('<Leave>', black_text_add)

How can I dynamically create ttk widgets depending on the value entered in a ttk.entry box?

I am trying to make a GUI where as soon as the user inputs an integer into a ttk.entry field, that many checkbuttons need to appear below it. For example, if they put "5" into the entry widget, 5 check buttons need to appear below the entry field.
Edit:
What I ended up using:
self.number_of_stages = tk.IntVar()
self.check_box_dict={}
self.num_of_stages={}
self.stagetempvar={}
self.equipment_widgets={}
def centrifugal_compressor_widgets(self):
self.equipment_widgets.clear()
self.equipment_widgets["NumOfStagesLabelCentComp"]=tk.Label(self.parent, text="Number of Stages:", bg="white")
self.equipment_widgets["NumOfStagesLabelCentComp"].place(relx=0.5, y=260, anchor="center")
self.equipment_widgets["NumOfStagesEntryCentComp"]=ttk.Entry(self.parent, textvariable=self.number_of_stages)
self.equipment_widgets["NumOfStagesEntryCentComp"].place(relx=0.5, y=290, anchor="center")
def OnTraceCentComp(self, varname, elementname, mode):
for key in self.check_box_dict:
self.check_box_dict[key].destroy()
try:
if self.number_of_stages.get() <=15 :
i=1
self.stagetempvar.clear()
while i <= self.number_of_stages.get():
self.stagetempvar[i]=tk.StringVar()
self.stagetempvar[i].set("Closed")
self.check_box_dict[i]=ttk.Checkbutton(self.parent, text=i, offvalue="Closed", onvalue="Open",variable=self.stagetempvar[i])
self.check_box_dict[i].place(relx=(i*(1/(self.number_of_stages.get()+1))), y=360, anchor="center")
i+=1
except:
pass

take a look at the below and let me know what you think...
A very ugly, super basic example:
from Tkinter import *
root = Tk()
root.geometry('200x200')
root.grid_rowconfigure(0, weight = 1)
root.grid_columnconfigure(0, weight = 1)
win1 = Frame(root, bg= 'blue')
win1.grid(row=0, column=0, sticky='news')
number = IntVar()
entry = Entry(win1, textvariable = number)
entry.pack()
confirm = Button(win1, text = 'Press to create widgets...', command = lambda:create_widgets(number.get()))
confirm.pack()
def create_widgets(number):
for n in range(0,number):
Checkbutton(win1, text = 'Checkbutton number : %s' % n).pack()
root.mainloop()

Python Tkinter StringVar only displaying Py_Var(number)

I am using Tkinter in python 3.4 to make a text based game, and I cannot figure out how to get a string from an Entry widget, it just returns Py_Var#, # being a number. I have looked at answers to similar questions, but none of them quite line up with what I need and have. Here's the relevant pieces of code:
from tkinter import *
win = Tk()
win.geometry("787x600")
playername = StringVar()
def SubmitName():
playername.get
#messagebox.showinfo("Success", playername)
print(playername)
frame3 = Frame(win)
frame3.pack()
label1 = Label(frame3, text="You awaken in a room, with no memories of yourself or your past. ")
label2 = Label(frame3, text="First, how about you give yourself a name:")
label1.config(font=("Courier", 11))
label2.config(font=("Courier", 11))
entry1 = Entry(frame3, textvariable=playername)
entry1.config(font=("Courier", 11))
label1.grid(row=0, column=0, columnspan=3)
label2.grid(row=1, column=0)
entry1.grid(row=1, column=1)
bnamesub= Button(frame3, text="Submit", command=lambda: SubmitName())
bnamesub.grid()
win.mainloop()
Also, first time using stackoverflow and its reading weird but w/e.

You have two mistakes in SubmitName().
First, you need to get the text like this:
txt = playername.get()
Then you need to print that txt:
print(txt)
By mistake you printed the StringVar variable itself.

from tkinter import *
import pickle
win = Tk()
win.geometry("787x600")
def SubmitName():
playername = entry1.get()
messagebox.showinfo("Success", playername)
print(playername)
frame3 = Frame(win)
frame3.grid()
label1 = Label(frame3, text="You awaken in a room, with no memories of yourself or your past. ")
label2 = Label(frame3, text="First, how about you give yourself a name:")
label1.config(font=("Courier", 11))
label2.config(font=("Courier", 11))
#name entered is a StringVar, returns as Py_Var7, but I need it to return the name typed into entry1.
entry1 = Entry(frame3)
entry1.config(font=("Courier", 11))
label1.grid(row=0, column=0, columnspan=3)
label2.grid(row=1, column=0)
entry1.grid(row=1, column=1)
bnamesub= Button(frame3, text="Submit", command=lambda: SubmitName())
bnamesub.grid()
What I changed:
-deleted playername = StringVar(). We don't really need it;
-changed inside the function: changed playername.get to playername = entry1.get();
-added frame3.grid() (without geometry managment, widgets cannot be shown on the screen.);
-also, a little edit: in Python, comments are created with # sign. So I changed * to #.

I was happy to find a solution here, but all these answers "as it is" are not working with my setting, python3.8, pycharm 2018.2
So if anyone could answer this, it seems that entry1.get() cannot be used as a string. I first wanted to append it in a list, and I did a more simple version to point out the trouble :
from tkinter import *
import pickle
win = Tk()
win.geometry("300x300")
#playername = StringVar()
def SubmitName():
labell = Label(win, text="Little tryup").grid()
playername = entry1.get()
# result about line 11: 'NoneType' object has no attribute 'get'
labelle = Label(win, text=playername).grid()
# print(txt)
label1 = Label(win, text="Enter a name:").grid()
entry1 = Entry(win).grid()
boutonne = Button(win, text="label-it!", command=lambda: SubmitName())
boutonne.grid()
win.mainloop()

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