In Java, I can override the toString() method of my class. Then Java’s print function prints the string representation of the object defined by its toString(). Is there a Python equivalent to Java’s toString()? For example, I have a PlayCard class. I have an instance c of PlayCard. Now: >>> print(c) <__main__.Card object at 0x01FD5D30> … Read more
I want to convert a color tuple to a color name, like ‘yellow’ or ‘blue’
I want to query services between two dates and sum their prices. When I try to use func.sum with Services.query, I get TypeError: BaseQuery object is not callable. How do I query using a function with Flask-SQLAlchemy?
I am writing a program that stores data in a dictionary object, but this data needs to be saved at some point during the program execution and loaded back into the dictionary object when the program is run again.
How would I convert a dictionary object into a string that can be written to a file and loaded back into a dictionary object? This will hopefully support dictionaries containing dictionaries.
Which one is more efficient using math.pow or the ** operator? When should I use one over the other?
When attempting to set the default value of a SelectField with WTForms, I pass in value to the ‘default’ parameter like so.
Visualizing scipy.stats distributions A histogram can be made of the scipy.stats normal random variable to see what the distribution looks like. % matplotlib inline import pandas as pd import scipy.stats as stats d = stats.norm() rv = d.rvs(100000) pd.Series(rv).hist(bins=32, normed=True) What do the other distributions look like? Answers: Thank you for visiting the Q&A section … Read more
Hi I am using pandas to convert a column to month.
When I read my data they are objects:
I’m attempting to string match 5-digit coupon codes spread throughout a HTML web page. For example, 53232, 21032, 40021 etc… I can handle the simpler case of any string of 5 digits with [0-9]{5}, though this also matches 6, 7, 8… n digit numbers. Can someone please suggest how I would modify this regular expression to match only 5 digit numbers?
I have a string in Python, say The quick @red fox jumps over the @lame brown dog.