Have a try and define a master: PhotoImage(master = canvas, width = WIDTH, height = HEIGHT) If you do not define a master then this image uses the first Tk() which is created and if that Tk is deleted there is no image to display. Tell me if it works, I am guessing.
The default value of end is \n meaning that after the print statement it will print a new line. So simply stated end is what you want to be printed after the print statement has been executed Eg: – print (“hello”,end=” +”) will print hello +
One encodes strings, and one decodes bytes. You should read bytes from the file and decode them: for lines in open(‘file’,’rb’): decodedLine = lines.decode(‘ISO-8859-1’) line = decodedLine.split(‘\t’) Luckily open has an encoding argument which makes this easy: for decodedLine in open(‘file’, ‘r’, encoding=’ISO-8859-1′): line = decodedLine.split(‘\t’)
The way you use the csv module changed in Python 3 in several respects (docs), at least with respect to how you need to open the file. Anyway, something like import csv with open(‘test.csv’, ‘w’, newline=””) as fp: a = csv.writer(fp, delimiter=”,”) data = [[‘Me’, ‘You’], [‘293’, ‘219’], [’54’, ’13’]] a.writerows(data) should work.
This is a new feature in Python 3.3 (as a comment notes, it doesn’t even work in 3.2). Much like return in a generator has long been equivalent to raise StopIteration(), return <something> in a generator is now equivalent to raise StopIteration(<something>). For that reason, the exception you’re seeing should be printed as StopIteration: 3, … Read more
UPDATE: This is no longer necessary with Python3.4. It installs pip3 as part of the stock install. I ended up posting this same question on the python mailing list, and got the following answer: # download and install setuptools curl -O https://bootstrap.pypa.io/ez_setup.py python3 ez_setup.py # download and install pip curl -O https://bootstrap.pypa.io/get-pip.py python3 get-pip.py Which … Read more
I had the same problem. This worked for me on mac: echo “set enable-bracketed-paste off” >> ~/.inputrc
Found a solution from importlib test code. Using importlib.machinery.SourceFileLoader: >>> import importlib.machinery >>> loader = importlib.machinery.SourceFileLoader(‘a_b’, ‘/tmp/a-b.txt’) >>> mod = loader.load_module() >>> mod <module ‘a_b’ from ‘/tmp/a-b.txt’> NOTE: only works in Python 3.3+. UPDATE Loader.load_module is deprecated since Python 3.4. Use Loader.exec_module instead: >>> import types >>> import importlib.machinery >>> loader = importlib.machinery.SourceFileLoader(‘a_b’, ‘/tmp/a-b.txt’) >>> … Read more
Your setup.py file needs setuptools. Some Python packages used to use distutils for distribution, but most now use setuptools, a more complete package. Here is a question about the differences between them. To install setuptools on Debian: sudo apt-get install python3-setuptools For an older version of Python (Python 2.x): sudo apt-get install python-setuptools
Use an infinite loop: while True: print(‘Hello world!’) This certainly can apply to your start() function as well; you can exit the loop with either break, or use return to exit the function altogether, which also terminates the loop: def start(): print (“Welcome to the converter toolkit made by Alan.”) while True: op = input … Read more