Your problem is that you installed two different Pythons, a 32-bit 3.6, and a 64-bit 3.6. The first pip on your PATH is the one for the 32-bit 3.6. So, when you pip install numpy, it’s downloading the 32-bit NumPy, and installing into the site-packages for the 32-bit Python. But your py launcher is defaulting to running the 64-bit 3.6, … Read more
Support for Python 3 was added in NumPy version 1.5.0, so to begin with, you must download/install a newer version of NumPy. Or simply using pip:
Your problem is with this line: It tries to take cow[n], which returns an integer, and make it a list. This doesn’t work, as demonstrated below: Perhaps you meant to put cow[n] inside a list: See a demonstration below: Also, I wanted to address two things: Your while-statement is missing a : at the end. It is considered very dangerous to … Read more
Enums have been added to Python 3.4 as described in PEP 435. It has also been backported to 3.3, 3.2, 3.1, 2.7, 2.6, 2.5, and 2.4 on pypi. For more advanced Enum techniques try the aenum library (2.7, 3.3+, same author as enum34. Code is not perfectly compatible between py2 and py3, e.g. you’ll need … Read more
You need to decode the bytes object to produce a string:
On Linux at least, there’s no difference as far as I can tell. Here’s a test script and its corresponding OS syscalls (using strace); tested on python 2.7.9. See http://man7.org/linux/man-pages/man2/open.2.html for more details on the file access and creation flags. It’s not accurate to say a file object opened with ‘r+’ cannot be used to truncate a file – … Read more
edit: Manual installation and use of setuptools is not the standard process anymore. If you’re running Python 2.7.9+ or Python 3.4+ Congrats, you should already have pip installed. If you do not, read onward. If you’re running a Unix-like System You can usually install the package for pip through your package manager if your version of Python is older than 2.7.9 or 3.4, … Read more
Your path only lists Visual Studio 11 and 12, it wants 14, which is Visual Studio 2015. If you install that, and remember to tick the box for Languages->C++ then it should work. On my Python 3.5 install, the error message was a little more useful, and included the URL to get it from Edit: New working link Edit: … Read more
Perhaps the error message is somewhat misleading, but the gist is that X_train is a list, not a numpy array. You cannot use array indexing on it. Make it an array first:
Python allows putting multiple open() statements in a single with. You comma-separate them. Your code would then be: And no, you don’t gain anything by putting an explicit return at the end of your function. You can use return to exit early, but you had it at the end, and the function will exit without it. (Of course with functions that return … Read more