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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...
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)
{
...
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...
Using Sinatra for larger projects via multiple files
...g Thin, you run an app like this using:
thin -R config.ru start
Edit: I'm now maintaining my own Monk skeleton based on the below called Riblits. To use it to copy my template as the basis for your own projects:
# Before creating your project
monk add riblits git://github.com/Phrogz/riblits.git
#...
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...
How can I use pickle to save a dict?
...le
favorite_color = pickle.load(open("save.p", "rb"))
# favorite_color is now {"lion": "yellow", "kitty": "red"}
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The model used to open the store is incompatible with the one used to create the store
...s that.. cant help.. nywaz, here goes my up vote.. the best i can do right now to appreciate your guidelines.. thanks a lot for the help mate.!!
– Apple_iOS0304
Oct 6 '12 at 15:20
...
Shell script while read line loop stops after the first line
... path is the input parameter to the script) and do work against each line. Now, it seems only work with the very first line in the target file and stops after that line got processed. Is there anything wrong with my script?
...
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...
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.
...