Pyspark: Parse a column of json strings
I have a pyspark dataframe consisting of one column, called json, where each row is a unicode string of json. I’d like to parse each row and return a new dataframe where each row is the parsed json.
Python
Some built-in to pad a list in python
I have a list of size < N and I want to pad it up to the size N with a value.
How to encode UTF8 filename for HTTP headers? (Python, Django)
I have problem with HTTP headers, they’re encoded in ASCII and I want to provided a view for downloading files that names can be non ASCII.
Get total physical memory in Python
How can I get the total physical memory within Python in a distribution agnostic fashion? I don’t need used memory, just the total physical memory.
TypeError: ‘dict_keys’ object does not support indexing
def shuffle(self, x, random=None, int=int): """x, random=random.random -> shuffle list x in place; return None. Optional arg random is a 0-argument function returning a random float in [0.0, 1.0); by default, the standard random.random. """ randbelow = self._randbelow for i in reversed(range(1, len(x))): # pick an element in x[:i+1] with which to exchange x[i] j … Read more
dropping rows from dataframe based on a “not in” condition
ValueError: The truth value of a Series is ambiguous. Use a.empty, a.bool(), a.item(), a.any() or a.all().
Distance between point and a line (from two points)
I’m using Python+Numpy (can maybe also use Scipy) and have three 2D points
How to space overlapping annotations
I want to annotate the bars in a graph with some text but if the bars are close together and have comparable height, the annotations are above ea. other and thus hard to read (the coordinates for the annotations were taken from the bar position and height).
Declare function at end of file in Python
This question already has answers here: How do I forward-declare a function to avoid `NameError`s for functions defined later? (17 answers) Closed 22 days ago. Is it possible to call a function without first fully defining it? When attempting this I get the error: “function_name is not defined”. I am coming from a C++ background … Read more
How do I install SciPy on 64 bit Windows?
How do I install SciPy on my system?