pavlova | A python deserialisation library built on top of dataclasses | Serialization library
kandi X-RAY | pavlova Summary
kandi X-RAY | pavlova Summary
A python deserialisation library built on top of dataclasses
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Top functions reviewed by kandi - BETA
- Parse input value
- Checks if the field_type is an optional type
pavlova Key Features
pavlova Examples and Code Snippets
from collections import defaultdict
from itertools import product
def left_join(left_table, right_table, keyprop):
# create a dictionary indexed by `keyprop` on the left
left = defaultdict(list)
for row in left_table:
#!/usr/bin/env python
''' Required to install these libraries to access spreadsheets
pip install xlrd
pip install xlutils
'''
import os, re, string
from xlutils.copy import copy
from xlrd import open_workbook
book_ro = open_workboo
Community Discussions
Trending Discussions on pavlova
QUESTION
Using the w3schools.com SQL tutorial Northwind database, I'm trying to display the category that has the most products shipped. Additionally, I want to display the net income from all sales in that category. I can't figure out how to take the category with the most products shipped, and use the amount of products shipped to calculate the net income of that category. This is because there are many different products that have the same CategoryID but different prices.
...ANSWER
Answered 2021-Jan-25 at 07:24So first of all you get the income for each product and category and then based on that you find total income for that category and you do this with the help of subquery, then you join this resultant table with the category table and with the help of group by you find the product count and total income for each category, below is the sql query for more indepth understanding
QUESTION
Im getting an error when trying to use inner join.
Invalid column name 'SupplierID'.
The column exists in both tables.
...ANSWER
Answered 2020-Jun-12 at 17:23You need to select SupplierID in OPENROWSET
. If you are joining two tables without selecting a columns that is why you receiving an error.
Just add ss.SupplierID
with ss.CompanyName
as following
QUESTION
So im having some issues related to my previous quest in C programming. This time on how to separate names from /etc/passwd
file using strtok_r
or strtok
. The deal is that I want to separate the users names in two parts, first name and middle name (assuming they got one) in the first, and the last name in the second. But I can't find a way to separate the names correctly. I got it to work with their first name in the first part, but then the middle name is attached to the last name.
The /etc/passwd
lines looks like this:
ANSWER
Answered 2019-Oct-17 at 17:45Your approach to use strtok_r
or strtok
to split the names cannot work.
After you tokenize the (complete) name, you get this:
QUESTION
Apologies if the title is confusing i wasn't too sure what else to call this question. Basically What I've accomplished so far is I've created a backup of a table ORDER_DETAIL and made the modifications to it so that when it runs the original data from table ORDER_DETAIL is inserted into a table ag715. The purpose of this is that when a separate script is ran called HACKER, this script changes ORDER_DETAIL.
My Task now is to compare the tables and show whats been deleted, inserted and updated. However my issue is when i run my backup file, ORDER_DETAIL is empty and ag715 has data so I'm unable to compare the tables.
My question is if my backup file was modified properly, or if its incorrect and deletes the contents of a table ORDER_DETAIL when ran?
...ANSWER
Answered 2019-Jun-08 at 00:00For this purpose, creating a new table maybe is not what you are looking for! Please review incremental backup solutions like Percona xtrabackup. I don't know why you do this, but maybe I should warn you, if you have some enterprise task, it is not a proper way to check the differences between data in the database layer! You should execute such processes at logic layer (with a proper programming language or scripting tools).
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install pavlova
You can use pavlova like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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