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0.1 float is greater than 0.1 double. I expected it to be false [duplicate]
... greater.
Here's what the double precision value gets rounded to (using a Python interpreter):
>>> "%.55f" % 0.1
'0.1000000000000000055511151231257827021181583404541015625'
And here's the single precision value:
>>> "%.55f" % numpy.float32("0.1")
'0.100000001490116119384765625...
Finding all possible permutations of a given string in python
I have a string. I want to generate all permutations from that string, by changing the order of characters in it. For example, say:
...
How do you change Background for a Button MouseOver in WPF?
....Value>
</Setter>
</p:Style>
(Note: you can omit the p: XML namespace qualifications in the actual code…I provide them here only because the Stack Overflow XML code formatter gets confused by <Style/> elements that don't have a fully-qualified name with XML namespace.)
If...
How to securely store access token and secret in Android?
...ed device we easily can read and modify all applications' SharedPrefereces xml's. So tokens should expire relatively frequent. But even if a token expires every hour, newer tokens can still be stolen from SharedPreferences. Android KeyStore should be used for long term storage and retrieval of crypt...
demystify Flask app.secret_key
...esses different aspects of the scheme. The syntax used for the examples is Python3, but the concepts apply also to previous versions.
What is SECRET_KEY (or how to create a Signed Cookie)?
Signing cookies is a preventive measure against cookie tampering. During the process of signing a cookie, th...
How to duplicate virtualenv
...e. A requirements file is basically a file that contains a list of all the python packages you want to install (or have already installed in case of file generated by pip), and what versions they're at.
To generate a requirements file, go into your original virtualenv, and run:
pip freeze > req...
Is there any difference between “foo is None” and “foo == None”?
... a special builtin method that determines how == is handled when used on a Python object. Here we have overridden it so that when == is used on objects of type Foo it always returns true. There isn't an equivalent method for the is operator and so the behaviour of is cannot be changed in the same wa...
How can I save an image with PIL?
I have just done some image processing using the Python image library (PIL) using a post I found earlier to perform fourier transforms of images and I can't get the save function to work. The whole code works fine but it just wont save the resulting image:
...
How To Check If A Key in **kwargs Exists?
Python 3.2.3. There were some ideas listed here , which work on regular var's, but it seems **kwargs play by different rules... so why doesn't this work and how can I check to see if a key in **kwargs exists?
...
Sass or Compass without ruby?
...her language. At this point, you can use the Sass engine in Ruby, Node.js, Python, PHP, Java, .NET and others. For more information, visit libSass. Also, your IDE might have a plugin which would support Sass, without the need of ruby by using the libSass.
The original answer below may or may not ap...