python-3.x - Read For Learn

how do I upgrade pip on Mac?

upgrading pip as of 09/2020:

Python – difference between two strings

You can use ndiff in the difflib module to do this. It has all the information necessary to convert one string into another string. A simple example: prints:

Python 3 integer division [duplicate]

Try this:

TensorFlow: how is dataset.train.next_batch defined?

The mnist object is returned from the read_data_sets() function defined in the tf.contrib.learn module. The mnist.train.next_batch(batch_size) method is implemented here, and it returns a tuple of two arrays, where the first represents a batch of batch_size MNIST images, and the second represents a batch of batch-size labels corresponding to those images. The images are returned … Read more

TypeError: ‘zip’ object is not subscriptable

In Python 2, zip returned a list. In Python 3, zip returns an iterable object. But you can make it into a list just by calling list, as in: In this case, that would be: With a list, you can use indexing: etc. But if you only need the first element, then you don’t strictly … Read more

unsupported format string passed to numpy.ndarray

If you still want format

KeyError: ‘plotly_domain’

Based on this answer, try using py.plot instead of py.iplot. KeyError: ‘plotly_domain’ when using plotly to do scatter plot in python The reason is that iplot is for ipython sessions.

Undefined variable error in function

corpus is not defined in global scope, so you are getting error. you can use like this, or

How to install PyQt4 on Windows using pip?

Here are Windows wheel packages built by Chris Golke – Python Windows Binary packages – PyQt In the filenames cp27 means C-python version 2.7, cp35 means python 3.5, etc. Since Qt is a more complicated system with a compiled C++ codebase underlying the python interface it provides you, it can be more complex to build … Read more

How to install PyQt4 on Windows using pip?

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