python-3.4

This question already has an answer here: Are the integer keys in a Python dictionary sorted and sorted with priority? 2 answers Running this code multiple times t = {'a', 'b', 'c', 'd'} print(t) could print something like: {'c', 'b', 'a', 'd'} {'d', 'b', 'c', 'a'} # different {'d', 'b', 'c', 'a'} # same {'a', 'd', 'b', 'c'} # different {'a', 'b', 'c', 'd'} # different # etc (If you are using the console to replicate it, make sure you click Rerun every time before you re-paste the code and execute it. If you still can't replicate, perhaps you have hash randomization not equal to random . On

I wrote below python code. And I found that python2 and python3 has totally difference running result for input of 1.1. Why is there such difference between python2 and python3? For me, int(1.1) should be 1, then position is valid index 1 within range 0,1,2. So can you please explain why python3 has such result? s=[1,2,3] while True: value=input() print('value:',value) try: position=int(value) print('position',position) print('result',s[position]) except IndexError as err: print('out of index') except Exception as other: print('sth else broke',other) $ python temp.py 1.1 ('value:', 1.1) (

I'm trying to install the logging module for Python 3.4. I'm using pip3 install logging. Both times I run into a SyntaxError at line 618 of the init method: "raise NotImplementedError, 'emit must be implemented '\". Someone posted the same question as me, and solved their problem by deleting an interfering third party library called logging: Logging module not working with Python3 . But I have no such library already installed in my site-packages directory. Thanks! logging is part of the Python standard library. It's available as soon as you install Python. You don't need to pip install

I create a UI from PyQt GPL v5.4 and use pyuic5 convert *.ui file to *.py But I do not know how keyPressEvent work in this code!! It should work for QWidget, but how to let it works. Please help! from PyQt5 import QtCore, QtGui, QtWidgets from PyQt5.QtCore import Qt from PyQt5.QtWidgets import QWidget class Ui_MainWindow(QWidget,object): def setupUi(self, MainWindow): MainWindow.setObjectName("MainWindow") MainWindow.resize(200, 200) self.centralwidget = QtWidgets.QWidget(MainWindow) self.centralwidget.setObjectName("centralwidget") self.pushButton = QtWidgets.QPushButton(self.centralwidget)

I am trying to install Beautiful Soup 4 in Python 3.4. I installed it from the command line, (got the invalid syntax error because I had not converted it), ran the 2to3.py conversion script to bs4 and now I get a new invalid syntax error. >>> from bs4 import BeautifulSoup Traceback (most recent call last): File "<pyshell#0>", line 1, in <module> from bs4 import BeautifulSoup File "C:\Python34\bs4\__init__.py", line 30, in <module> from .builder import builder_registry, ParserRejectedMarkup File "C:\Python34\bs4\builder\__init__.py", line 4, in <module> from bs4.element import ( File "C: