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What does “SyntaxError: Missing parentheses in call to 'print'” mean in Python?
... from being a distinct statement to being an ordinary function call, so it now needs parentheses:
>>> print("Hello, World!")
Hello, World!
In earlier versions of Python 3, the interpreter just reports a generic syntax error, without providing any useful hints as to what might be going wr...
In Python, using argparse, allow only positive integers
... case, you can also use the choices parameter if your upper limit is also known:
parser.add_argument('foo', type=int, choices=xrange(5, 10))
Note: Use range instead of xrange for python 3.x
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Python Requests and persistent sessions
...less than 30 minutes old
lastModification = (datetime.datetime.now() - time).seconds
if lastModification < self.maxSessionTime:
with open(self.sessionFile, "rb") as f:
self.session = pickle.load(f)
wasReadFromCache = ...
How do I obtain crash-data from my Android application?
... HttpPost(url); must be in an async task (or handler... a separate thread) now if you are targeting Honeycomb or later
– Bryan Denny
Oct 13 '11 at 0:59
...
Importing from a relative path in Python
...imports, where you can avoid doing anything hacky. With this method, you know you are getting a relative import rather than an absolute import. The '..' means, go to the directory above me:
from ..Common import Common
As a caveat, this will only work if you run your python as a module, from out...
Programmatically generate video or animated GIF in Python?
... it has problems with PIL/Pillow and is not actively maintained (I should know, because I am the author).
Instead, please use imageio, which was developed to solve this problem and more, and is intended to stay.
Quick and dirty solution:
import imageio
images = []
for filename in filenames:
i...
What is a NullReferenceException, and how do I fix it?
... case:
string GetCategory(Book b)
{
if (b == null)
return "Unknown";
return b.Category;
}
Explicitly check for null from method calls and throw a custom exception.
You can also throw a custom exception, only to catch it in the calling code:
string GetCategory(string bookTitle)
{
...
Bad class file magic or version
I already know that question has been already asked very often and answers, but no one of the answers i found fixed my problem.
...
Chained method calls indentation style in Python [duplicate]
... looked wrong 7 years ago when I wrote that. I would not have written that now, 7 years later, but neither am I going to go back and update all my old answers.
– Kirk Strauser
Sep 19 '18 at 21:26
...
Entity Framework - Invalid Column Name '*_ID"
...on this answer, because it was most accurate to my situation (but I didnt know it until after I figured my problem out). If you have some error related to OtherTable_ID when you are retrieving Table, go to your OtherTable model and make sure you don't have an ICollection<Table> in there. Wit...