This code is appearing to give me an error to my arguments i don't know what i have done wrong in this code. When attempting to run a binary search inside tkinter using python 2.7 The programs works fine if i don't use the gui just line code. This is the code I have based my program on
http://www.pythonschool.net/data-structures-algorithms/binary-search/
The error is: Exception in Tkinter callback Traceback (most recent call last): File "C:\Python27\lib\lib-tk\Tkinter.py", line 1536, in call return self.func(*args) TypeError: binarySearch() takes exactly 2 arguments (0 given)
from Tkinter import *
import csv
with open('scoresRecord.csv', 'rb') as f:
reader = csv.reader(f)
your_list = list(reader)
root = Tk()
root.resizable(0,0)
root.title("Score Board")
def binarySearch(myitem,myList):
found = False
bottom = 0
top = len(myList)-1
while bottom<=top and not found:
middle = (bottom+top)//2
if myList[middle]== myitem:
found = True
elif myList[middle] < myitem:
bottom = middle + 1
else:
top = middle-1
return found
if __name__=="__main__":
Scorelist = [row[0] for row in your_list]
Dismissallist =[row[1] for row in your_list] # create a list of only the dismissal
Venuelist =[row[2] for row in your_list] # create a list of only the venue
item = int(input(entScore.get()))
Scorelist = map(int, Scorelist)
rowPos = Scorelist.index(item)
isitFound = binarySearch(item,Scorelist)
if isitFound:
Score= Scorelist[rowPos]
Dismissal= Dismissallist[rowPos]
Venue= Venuelist[rowPos]
else:
Score= ("Not Found")
Dismissal= ("Not Found")
Venue= ("Not Found")
numScoreLbl.configure(text=Score)
numDismissal.configure(text=Dismissal)
outVenue.configure(text=Venue)
#==========GUI Section==================#
First of all, make sure your list is ordered, otherwise the results may be wrong.
Second, do this
Scorelist = list(map(int, Scorelist))#convert to list
isitFound = binarySearch(item,Scorelist)
Although, if you are using .index method, then you can do something like this for better performance:
try:
index = Scorelist.index(item)
isitFound = True
except ValueError:
isitFound = False
It takes out the binary search part, but you were using .index anyways. So this is better. Hope it helps :)
Related
I have a program that puts the contents of a dictionary in a Tkinter Listbox, but I'm having trouble deleting it from the Listbox and the dictionary.
from tkinter import *
import ast
f = open("orders.txt", "r")
contents = f.read()
f.close()
things = ast.literal_eval(contents)
secondthing = [things, "test"]
root = Tk()
f = Frame(root).pack()
l = Listbox(root)
b = Button(root, text = "delete selection", command = lambda: delete(l))
b.pack()
l.pack()
for i, j in things.items():
oneitem = i + " " + j
l.insert(END, oneitem)
def delete(listbox):
global things
# Delete from Listbox
selection = l.curselection()
l.delete(selection[0])
# Delete from list that provided it
evaluater = l.get(selection[0])
value = eval(evaluater)
ind = things.index(value)
del(things[ind])
print(things)
root.mainloop()
When I try to delete something it gives me:
Exception in Tkinter callback
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/tkinter/__init__.py", line 1883, in __call__
return self.func(*args)
File "/Users/mimmo/black_market/aaa.py", line 12, in <lambda>
b = Button(root, text = "delete selection", command = lambda: delete(l))
File "/Users/mimmo/black_market/aaa.py", line 28, in delete
value = eval(evaluater)
File "<string>", line 1
ohhh ohhhhh
^
SyntaxError: unexpected EOF while parsing
Can someone help me because I can delete it from the Listbox, I just have an error when deleting it from the dictionary.
The contents of orders.txt:
{"ayyy" : "ayyyyyy", "ohhh" : "ohhhhh"}
First of all, I would recommend using json or pickle to store contents of the dictionary - it's the most common practice. I don't really understand what do you want to do so I wrote a function which deletes an element from listbox and things by it's index.
An error you are getting is caused by eval function which tries to intepret your listbox item as python code. Of course, it's getting syntax error.
# Deletes element from listbox and thigs by it's index
def delete(listbox, index: int):
global things
item = listbox.get(index)
key = item.split()[0]
del things[key]
listbox.delete(index)
Hey I've got a really poorly labelled element I need to get the text from. It's surrounded by other elements that I don't want.
I can easily target the sibling of the element I want.
How can I target the "Next Sibling" of?
dlg4.window(title='WindowTitleThing',class_name='Text').draw_outline()
Can I target first child of?
Using UIA backend. Thanks!
Found this, but can't get it to work:
# Monkey patch for pywinauto that adds a first_only parameter to the window function
# for the UIA backend, in order to work around slow FindAll calls (win10 bug?)
# First copy paste this code on your REPL, then do:
# d1 = pywinauto.Desktop("uia")
# d1.window(first_only=True, title="Calculator").window_text()
# Currently only title is supported, but its easy to implement all the others as well,
# most importantly title_re
def first_child(self):
print("Getting first child")
child = pywinauto.uia_defines.IUIA().iuia.RawViewWalker.GetFirstChildElement(self._element)
if child:
return pywinauto.uia_element_info.UIAElementInfo(child)
else:
return None
def next_sibling(self):
print("Getting sibling")
sibling = pywinauto.uia_defines.IUIA().iuia.RawViewWalker.GetNextSiblingElement(self._element)
if sibling:
return pywinauto.uia_element_info.UIAElementInfo(sibling)
else:
return None
def find_first_element(first_only=None,
title=None,
title_re=None,
top_level_only=True,
backend=None
):
if backend is None:
backend = pywinauto.backend.registry.active_backend.name
backend_obj = pywinauto.backend.registry.backends[backend]
if not top_level_only:
raise NotImplementedError # or can we actually accept this?
rootElement = backend_obj.element_info_class()
element = None
child = rootElement.first_child()
while child is not None:
print(child.name + " ?= " + title)
if child.name == title:
# TODO all the other conditions..
# class_name(_re)
# title_re
# process
# visible / enabled / handle / predicate_func / active_only / control_id / control_type / auto_id / framework_id
break
child = child.next_sibling()
return child
def new_find_element(**kwargs):
if 'first_only' in kwargs and kwargs['first_only'] is True:
print("Using patched function to get only the first match")
el = pywinauto.findwindows.find_first_element(**kwargs)
if el is None:
raise pywinauto.findwindows.ElementNotFoundError(kwargs)
else:
return el
else:
print("Using original function")
return pywinauto.findwindows.original_find_element(**kwargs)
import pywinauto
pywinauto.uia_element_info.UIAElementInfo.first_child = first_child
pywinauto.uia_element_info.UIAElementInfo.next_sibling = next_sibling
pywinauto.findwindows.find_first_element = find_first_element
pywinauto.findwindows.original_find_element = pywinauto.findwindows.find_element
pywinauto.findwindows.find_element = new_find_element
>>> first_child(dlg4)
Getting first child
Using original function
Using original function
Using original function
Using original function
Using original function
Using original function
Using original function
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 3, in first_child
ctypes.ArgumentError: argument 1: <class 'pywinauto.findbestmatch.MatchError'>: Could not find '_element' in 'dict_keys(
# coding=utf-8
def compare(arr1, arr2):
arr1 = arr1.strip()
arr2 = arr2.strip()
arr1 = arr1.split('\t')
arr2 = arr2.split('\t')
# print arr1[0], arr1[1]
arr1min = min(long(arr1[0]), long(arr1[1]))
arr1max = max(long(arr1[0]), long(arr1[1]))
arr2min = min(long(arr2[0]), long(arr2[1]))
arr2max = max(long(arr2[0]), long(arr2[1]))
# print arr1max, arr2max, arr1min, arr1min
if (arr1min < arr2min):
return -1
elif (arr1min > arr2min):
return 1
else:
if (arr1max < arr2max):
return -1
elif (arr1max > arr2max):
return 1
else:
return 0
f = open('er1000000new.txt')
fwrite = open('erzhesorted.txt', 'w')
lines = f.readlines()
lines.sort(compare)
for line in lines:
# fwrite.write(str(line))
print line
f.close()
fwrite.close()
the compare is custom sort function.
for example, when the result printed on screen, the result is
752555452697747457\t752551879448547328\t1468258301659\n
752563934733873152\t752561055289577472\t1468260508664\n
but the result printed on file is
6782762\t12\t1468248110665\n
2660899225\t12\t1468229395665\n
The two results are different, why?
The wb option when you open a file, makes python waiting for a byte object to write in that file.
Your (commented) line fwrite.write(str(line)) sends a string object.
Doesn't it produce the following error?
TypeError: a bytes-like object is required, not 'str'
Also it may come from your compare attribute in sort method.
What is it?
→ Removing the b option and removing the compare attribute produces the same outputs in term and file outputs.
Hi I'm VERY new to programming, and I am working on my first program. I've been following along in a book and I decided to stop and test a function. The function is in a file called myPythonFunctions.py. I then created a new file called untitled.py and put it in the same folder as myPythonFunctions.py.
In untitled.py I have the following code:
import myPythonFunctions as m
m.generateQuestion()
Very simple, but when I try to run it I get Import Error: no module named myPythonFunctions.
I don't understand, there is clearly a file named myPythonFunctions in the folder. What's going on?
In case you need it, here is the code for m.generateQuestion()
def generateQuestion():
operandList = [0,0,0,0,0,]
operatorList = ['', '', '', '', '']
operatorDict = [1:'+', 2:'-', 3:'*', 4:'**']
for index in range(0,5):
operandList[index] = randint(1,9)
for index in range(0,4):
if index > 0 and operatorList[index-1] !='**':
operator = operatorDict[randint(1,4)]
else:
operator = operatorDict[randint(1,3)]
operatorList[index] = operator
questionString = str(operandList[0])
for index in range(1,5):
questionString = questionString + OperatorList[index-1] + str[operandList[index]
result = eval(questionString)
questionString.replace("**","^")
print('\n' + questionString)
userAnswer=input('Answer: ')
while true:
try:
if int(userAnswer) == result:
print('Correct!')
return 1
else:
print('Sorry, the correct answer is', result)
return 0
except Exception as e:
print("That wasn't a number")
userAnswer = input('Answer: ')
Edit: I'm now getting this error
Traceback (most recent call last):
File "/Users/Brad/Desktop/Python/Untitled.py", line 1, in <module>
import myPythonFunctions as m
File "/Users/Brad/Desktop/Python/myPythonFunctions.py", line 33
operatorDict = [1:'+', 2:'-', 3:'*', 4:'**']
^
SyntaxError: invalid syntax
The syntaxis error you are getting, is because you are trying to define a dictionary as a list, so the interpreter is raising the error because it does not know what to do with that.
To define a dictionary you need to use { } instead of [ ]
--- EDIT 2
Your dictionary implementation is wrong, do you really copied this code from somewhere?
The
operatorDict = {1:'+', 2:'-', 3:'*', 4:'**'}
Your code was mispelled
---- EDIT
Your code on myPythonFunctions is really bad.
Python needs correct identation to works, please double check this step
I suggest you to do a check in your structure:
I did this right now
/somefolder
--this.py
--functions.py
/
The contents
--this.py
import functions as f
print f.hello()
--functions.py
def hello():
return 'It worked'
Try this structure in your environment :D
And then run:
python this.py
So I am learning python and redoing some old projects. This project involves taking in a dictionary and a message to be translated from the command line, and translating the message. (For example: "btw, hello how r u" would be translated to "by the way, hello how are you".
We are using a scanner supplied by the professor to read in tokens and strings. If necessary I can post it here too. Heres my error:
Nathans-Air-4:py1 Nathan$ python translate.py test.xlt test.msg
Traceback (most recent call last):
File "translate.py", line 26, in <module>
main()
File "translate.py", line 13, in main
dictionary,count = makeDictionary(commandDict)
File "/Users/Nathan/cs150/extra/py1/support.py", line 12, in makeDictionary
string = s.readstring()
File "/Users/Nathan/cs150/extra/py1/scanner.py", line 105, in readstring
return self._getString()
File "/Users/Nathan/cs150/extra/py1/scanner.py", line 251, in _getString
if (delimiter == chr(0x2018)):
ValueError: chr() arg not in range(256)
Heres my main translate.py file:
from support import *
from scanner import *
import sys
def main():
arguments = len(sys.argv)
if arguments != 3:
print'Need two arguments!\n'
exit(1)
commandDict = sys.argv[1]
commandMessage = sys.argv[2]
dictionary,count = makeDictionary(commandDict)
message,messageCount = makeMessage(commandMessage)
print(dictionary)
print(message)
i = 0
while count < messageCount:
translation = translate(message[i],dictionary,messageCount)
print(translation)
count = count + 1
i = i +1
main()
And here is my support.py file I am using...
from scanner import *
def makeDictionary(filename):
fp = open(filename,"r")
s = Scanner(filename)
lyst = []
token = s.readtoken()
count = 0
while (token != ""):
lyst.append(token)
string = s.readstring()
count = count+1
lyst.append(string)
token = s.readtoken()
return lyst,count
def translate(word,dictionary,count):
i = 0
while i != count:
if word == dictionary[i]:
return dictionary[i+1]
i = i+1
else:
return word
i = i+1
return 0
def makeMessage(filename):
fp = open(filename,"r")
s = Scanner(filename)
lyst2 = []
string = s.readtoken()
count = 0
while (string != ""):
lyst2.append(string)
string = s.readtoken()
count = count + 1
return lyst2,count
Does anyone know whats going on here? I've looked through several times and i dont know why readString is throwing this error... Its probably something stupid i missed
chr(0x2018) will work if you use Python 3.
You have code that's written for Python 3 but you run it with Python 2. In Python 2 chr will give you a one character string in the ASCII range. This is an 8-bit string, so the maximum parameter value for chris 255. In Python 3 you'll get a unicode character and unicode code points can go up to much higher values.
The issue is that the character you're converting using chr isn't within the range accepted (range(256)). The value 0x2018 in decimal is 8216.
Check out unichr, and also see chr.