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Safe characters for friendly url [closed]
...acters that are allowed in a URI but do not have a reserved
purpose are called unreserved. These include uppercase and lowercase
letters, decimal digits, hyphen, period, underscore, and tilde."
ALPHA DIGIT "-" / "." / "_" / "~"
Note that RFC 3986 lists fewer reserved punctuation marks th...
App Inventor 2 扩展 · App Inventor 2 中文网
...omponents can be distributed on the Web and loaded into App Inventor dynamically: they do not have to be built into the App Inventor system, and they can be imported into projects as needed. With extensions, the range of App Inventor apps can be virtually unlimited.
One use of extensions, for exa...
Google Chrome display JSON AJAX response as tree and not as a plain text
...loper tools pretty print XHR content. See:
Viewing HTML response from Ajax call through Chrome Developer tools?
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Why does pylint object to single character variable names?
...the maintenance team as to what the function could be doing, and how it is called, and what it returns. So in Python, you tend to use descriptive names:
def check_modality(name, mode, option_list):
checker = build_checker(name, mode)
return checker.check_option(option_list)
and you even a...
How to make a variadic macro (variable number of arguments)
... #define PRINT if(0)print is not a good idea either because the calling code might have its own else-if for calling PRINT. Better is: #define PRINT if(true);else print
– bitc
Jun 16 '10 at 7:58
...
Excluding directories in os.walk
...dirs if d not in exclude]
From help(os.walk):
When topdown is true, the caller can modify the dirnames list in-place
(e.g., via del or slice assignment), and walk will only recurse into
the subdirectories whose names remain in dirnames; this can be used to
prune the search...
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How can I merge two hashes without overwritten duplicate keys in Ruby?
...sly, this is very rudimentary and assumes that hash1 doesn't have any keys called "hash2-originated-whatever" - you may be better off just adding a number to the key so it becomes key1, key2 and so on until you hit on one that isn't already in hash1. Also, I haven't done any ruby for a few months so...
Why are Docker container images so large?
...ce that.
I made an Ubuntu image that is actually minimal (unlike other so-called "minimal" images). It's called textlab/ubuntu-essential and has 60 MB.
FROM textlab/ubuntu-essential
RUN apt-get update && apt-get -y install nano
The above image is 82 MB after installing nano.
FROM textl...
Retrieving parameters from a URL
...
There is a new library called furl. I find this library to be most pythonic for doing url algebra.
To install:
pip install furl
Code:
from furl import furl
f = furl("/abc?def='ghi'")
print f.args['def']
...
What is this: [Ljava.lang.Object;?
I get this when I call toString on an object I received from a function call. I know the type of the object is encoded in this string, but I don't know how to read it.
...