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How do I validate a date string format in python?
...start needing to parse other formats in the future, as it can handle most known formats intelligently and allows you to modify your specification: dateutil parsing examples.
It also handles timezones if you need that.
Update based on comments: parse also accepts the keyword argument dayfirst whi...
Inheritance and Overriding __init__ in python
...le dated with respect to subclassing built-in classes.
It looks like this nowadays:
class FileInfo(dict):
"""store file metadata"""
def __init__(self, filename=None):
super(FileInfo, self).__init__()
self["name"] = filename
Note the following:
We can directly subclass b...
Chrome extension: accessing localStorage in content script
... it will be the storage from that webpage, not the extension page storage.
Now, to let your content script to read your extension storage (where you set them from your options page), you need to use extension message passing.
The first thing you do is tell your content script to send a request to yo...
Data access object (DAO) in Java
...he DAO once we get what we want from the database. Am i right?? and may i know the Scope of this DAO concept rami??
– Vasanth Nag K V
Oct 4 '13 at 6:12
...
Add an already existing directory to a directory in Solution Explorer
...
I know this is a little late, but if your directory (folder) is already in place on the filesystem and you want to add it to your project (as this is stated more simply in the comments above).. just open up the file explorer (li...
View's getWidth() and getHeight() returns 0
...victim)
2. Add a runnable to the layout queue: View.post()
Not very well known and my favourite solution. Basically just use the View's post method with your own runnable. This basically queues your code after the view's measure, layout, etc. as stated by Romain Guy:
The UI event queue will proces...
What is the difference between class and instance methods?
... be memory managed, great for temperorary arrays and what not.
I hope you now understand when and/or why you should use class methods!!
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How to override the copy/deepcopy operations for a Python object?
...se where pickling and copying need to be different. In fact, I don't even know why copy tries to use the pickling protocol by default. Copying is for in-memory manipulation, pickling is for cross-epoch persistence; they are completely different things that bear little relation to each other.
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std::shared_ptr of this
... so, you are declaring that the caller shouldn't care about the ownership. Now this can be very limiting, but also by doing so, you must make sure that the child in question won't get destroyed while any weak pointers are still held, if you would use a smart pointer, it would get sorted out by itsel...
Class with Object as a parameter
...r in Python3? I cannot seem to find it. Thank you
– Snow
Nov 6 '17 at 12:36
1
It's been mentioned...