python-3.4

问题 this is my setup.py file for installing my python program, after the installation using python3 setup.py install an entry to my program was created named testmain , when i did pip3 freeze it showed abc==0.1 in its output ,so i uninstalled it using pip3 with pip3 uninstall abc , though the packages were uninstalled but there still existed the entry testmain on my path , is there a way that pip3 also removes this entry during the uninstall or any other way that i can cleanly uninstall my

问题 I have this really small test program which does nothing apart from a executing an asyncio event loop: import asyncio asyncio.get_event_loop().run_forever() When I run this program on Linux and press Ctrl + C , the program will terminate correctly with a KeyboardInterrupt exception. On Windows pressing Ctrl + C does nothing (tested with Python 3.4.2). A simple inifinite loop with time.sleep() raises the KeyboardInterrupt correctly even on Windows: import time while True: time.sleep(3600) Why

问题 I am trying to properly understand and implement two concurrently running Task objects using Python 3's relatively new asyncio module. In a nutshell, asyncio seems designed to handle asynchronous processes and concurrent Task execution over an event loop. It promotes the use of await (applied in async functions) as a callback-free way to wait for and use a result, without blocking the event loop. (Futures and callbacks are still a viable alternative.) It also provides the asyncio.Task() class

问题 I am trying to properly understand and implement two concurrently running Task objects using Python 3's relatively new asyncio module. In a nutshell, asyncio seems designed to handle asynchronous processes and concurrent Task execution over an event loop. It promotes the use of await (applied in async functions) as a callback-free way to wait for and use a result, without blocking the event loop. (Futures and callbacks are still a viable alternative.) It also provides the asyncio.Task() class

问题 I am trying to properly understand and implement two concurrently running Task objects using Python 3's relatively new asyncio module. In a nutshell, asyncio seems designed to handle asynchronous processes and concurrent Task execution over an event loop. It promotes the use of await (applied in async functions) as a callback-free way to wait for and use a result, without blocking the event loop. (Futures and callbacks are still a viable alternative.) It also provides the asyncio.Task() class

问题 CentOS 7 EPEL now includes Python 3.4: yum install python34 However, when I try that, even though Python 3.4 installs successfully, it doesn't appear to install pip. Which is weird, because pip should be included by default with Python 3.4. which pip3 doesn't find anything, nor does which pip . How do I access pip from the Python 3.4 package in CentOS 7 EPEL release? 回答1: The easiest way I've found to install pip3 (for python3.x packages) on CentOS 7 is: $ sudo yum install python34-setuptools

问题 I'm trying to write a function that accepts a 2-dimensional (2D) list of characters (like a crossword puzzle) and a string as input arguments, the function must then search the columns of the 2D list to find a match of the word. If a match is found, the function should then return a list containing the row index and column index of the start of the match, otherwise it should return the value None. For example if the function is called as shown below: crosswords = [['s','d','o','g'],['c','u',

问题 I'm checking whether a given transactionid exists in my sqlite database with this code. print((transaction.transactionid,)) print(type(transaction.transactionid)) c.execute("SELECT EXISTS(SELECT transactionid FROM Transactions WHERE transactionid=?);", (transaction.transactionid,)) self.dbconn.commit() transaction_exists, = c.fetchone() print(transaction_exists) It always fails with this error on the second iteration: File "RtMetaMaster.py", line 182, in sync_ticket_to_db (transaction

问题 I m currently learning python using the ThinkPython book, am using python 3.4 and the Anaconda IDE. Part of what I need to continue is to install a module called swampy. I installed it using pip, which worked very well. Importing the module worked too together with tkinter, but I can't use any of the functions in the module. I checked my lib folder, swampy is there and the functions too are in the swampy folder. I can't figure out why its not working. Please I really need help. If the

问题 After successful installation of Python I can't find the pip executable. The contents of the /usr/local/lib/python3.4/site-packages/pip are: -rw-r--r--. 1 root root 9450 Oct 26 10:29 __init__.py -rw-r--r--. 1 root root 116 Oct 26 10:29 __main__.py -rw-r--r--. 1 root root 9507 Oct 26 10:29 cmdoptions.py -rw-r--r--. 1 root root 8162 Oct 26 10:29 baseparser.py -rw-r--r--. 1 root root 6578 Oct 26 10:29 basecommand.py -rw-r--r--. 1 root root 2969 Oct 26 10:29 pep425tags.py -rw-r--r--. 1 root root