I’ve got a script updating 5-10 columns worth of data , but sometimes the start csv will be identical to the end csv so instead of writing an identical csvfile I want it to do nothing… How can I compare two dataframes to check if they’re the same or not? Any ideas? Answer You also need to be…
Tag: python-2.7
Converting Snake Case to Lower Camel Case (lowerCamelCase)
What would be a good way to convert from snake case (my_string) to lower camel case (myString) in Python 2.7? The obvious solution is to split by underscore, capitalize each word except the first one and join back together. However, I’m curious as to other, more idiomatic solutions or a way to use RegEx…
Print range of numbers on same line
Using python I want to print a range of numbers on the same line. how can I do this using python, I can do it using C by not adding n, but how can I do it using python. I am trying to get this result. Answer Python 2 Python 3
Python argparse conditional requirements
How do I set up argparse as follows: For example, There are a number of similar questions here, but either they don’t address this situation or I don’t understand. Python 2.7 if that matters. Answer A subparser (as suggested in comments) might work. Another alternative (since mutually_exclusive_gr…
Local variable referenced before assignment? [duplicate]
This question already has answers here: UnboundLocalError trying to use a variable (supposed to be global) that is (re)assigned (even after first use) (14 answers) Closed 6 months ago. I am using the PyQt library to take a screenshot of a webpage, then reading through a CSV file of different URLs. I am keepin…
Setting Cell Formats with xlwt format strings
I’ve looked around for several different xlwt formats for cells, but I can’t find a comprehensive list. Excel provides the following options for cell content formatting: (general, number, currency, accounting, date, time, percentage, fraction, scientific, text, special, custom) Obviously custom is…
Python Requests: Hook or no Hook?
I ‘.get’ a request and process the response like: After reading the package’s docs, I saw that there is a hook functionality which would permit me to do: My questions: When should I use hooks? Or, why should I use hooks? I wish to initiate an object (a parser) after a request’s respons…
using “getElementsByTagName” to get tag in python
my XML file is my code is I want to get value of element with tagname ‘string name=”ID”‘ but the error comes if i replace to the output comes “nCGhwaZNpy6” since its the first element of that list but second element is “02.11.2013 Scott Mobile” which also get sa…
Convert set to string and vice versa
Set to string. Obvious: String to set? Maybe like this? Extremely ugly. Is there better way to serialize/deserialize sets? Answer Use repr and eval: Note that eval is not safe if the source of string is unknown, prefer ast.literal_eval for safer conversion: help on repr:
Use curly braces to initialize a Set in Python
I’m learning python, and I have a novice question about initializing sets. Through testing, I’ve discovered that a set can be initialized like so: Are there any disadvantages of doing it this way, as opposed to the standard way of: or is it just a question of style? Answer There are two obvious is…