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What is a regular expression for a MAC Address?
...at" comes from Wikipedia, not the 802.3 standards body. IEEE 802-2014 actually specifies hyphens for ordinary MAC addresses (§ 8.1 ¶ 3) and colons for the obsolescent bit-reversed notation (¶ 4). Importantly, in practice, no one observes this. We simply use one or the other, but never mix them...
How to import a module given the full path?
... path from its cache. In my case I aimed at creating a plugin system where all plugins implement a specific classX. I ended up using SourceFileLoader, note that its deprecation is controversial.
– ComFreek
Jul 3 '15 at 17:18
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How to get instance variables in Python?
Is there a built-in method in Python to get an array of all a class' instance variables? For example, if I have this code:
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Square retrofit server mock for testing
...orking anymore with Retrofit 2.0, here I describe a new way of doing that. All what you need to do now is to add your custom interceptors for OkHttpClient like it is shown below. FakeInterceptor class just overrides intercept method and in the case if application is in DEBUG mode return given JSON. ...
SQLAlchemy: print the actual query
I'd really like to be able to print out valid SQL for my application, including values, rather than bind parameters, but it's not obvious how to do this in SQLAlchemy (by design, I'm fairly sure).
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Get IP address of visitors using Flask for Python
...emote_addr)
When proxies, such as nginx, forward addresses, they typically include the original IP somewhere in the request headers.
Update See the flask-security implementation. Again, review the documentation about ProxyFix before implementing. Your solution may vary based on your particular...
ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
We have an application running locally where we're experiencing the following error:
25 Answers
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Unix's 'ls' sort by name
...t the FILEs (the current directory by default). Sort entries alpha‐betically if none of -cftuvSUX nor --sort is specified.:
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Is Big O(logn) log base e?
...nary search tree type of data structures, I see the Big O notation is typically noted as O(logn). With a lowercase 'l' in log, does this imply log base e (n) as described by the natural logarithm? Sorry for the simple question but I've always had trouble distinguishing between the different impli...
How do I design a class in Python?
I've had some really awesome help on my previous questions for detecting paws and toes within a paw , but all these solutions only work for one measurement at a time.
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