answer is D

There is no such a concept called increment/decrement operators in python. It will consider the statement as +(+a) and that results in a.
Example: +(+10) -> +10 -> 10

Let’s connect at 11:30


What are future skills ? Why I need to learn Python ? And so ...


I have latest stats about future skills.


Join Zoom Meeting
https://us02web.zoom.us/j/89367678426

Facebook has developed TransCoder, the first self-supervised neural transcompiler system for migrating code between programming languages. Transcoder can translate code from Python to C++, for example, and it outperforms rule-based translation programs.


This is successfully working and passed today.


Lastly, Cross-lingual model pretraining and Denoising Auto-Encoding alone are enough to generate translations.

Multiple assignment is slower than an individual assignment.
However, multiple assignment is faster for variable swaps.

MIT has developed a new AI programming language called GEN which makes it easier for non-techies to build Artificial Intelligence models. It is also useful for expert to accelerate their developments.

Did you have time to upgrade to Python 3.8.4 already? Well fuggedaboudit! Python.org is released Python 3.8.5 due to some important security-related content. The last beta of 3.9.0 is now also available for your testing pleasure

To make a compound dictionary key where order doesn't matter, use frozenset():

color_mix = {
frozenset({'red', 'yellow'}): 'orange',
frozenset({'red', 'blue'}): 'purple',
frozenset({'blue', 'yellow'}): 'green',
frozenset({'red', 'blue', 'yellow'}): 'black',
}

The terms "compound key" and "composite key" tend to be used interchangeably in the Python world.

In the database and ER modeling worlds, a compound key is a composite key where the components are themselves simple keys to other tables or entities.

File formats for Machine Learning

Input File Formats
columnar data file - .orc,.petastorm,.parquet
Tabular File Formats - .csv, .xslx
Nested File Formats - .json, .tfrecords, .xml, .avro
ArrayBased File Formats - .npy
Hierarchical Data Formats - HDF5(.h5 or .hdf5) and NetCDF (.nc)

Model Formats
Tensorflow model —-> .pb file extension
Keras —> .h5
Scikit-learn —> .pkl
Older format —>.pmml
Apple developed —> .mlmodels store models in iOS.
Pytorch —> .pt

Content by Raja

Get ready for this week edition of DevSprint.

Let’s discuss the Blockchain this Sunday (tomorrow) morning 9AM IST.

You will be understanding basic and complete overview of Blockchain using python.

Meeting link will be share with you by end of the day.

random.shuffle() is an in-place operation that operates on any mutable sequence.

To shuffle in-line or to work from an immutable sequence, use random.sample() instead:

>>> s = 'hello world'
>>> ''.join(random.sample(s, k=len(s)))
'lld erlohwo'

The standard library shelve module provides a simple dict-like tool for saving data across python sessions.

>>> import shelve
>>> s = shelve.open('tmp.shelve')
>>> s['Raja']
'red'

It is a lightweight key/object data store.

Shelve is built on dbm and pickle, so it inherits their limitations.

When speed isn't a concern, I usually set writeback=True to avoid issues with mutable objects.

Algovis is a python library made for visualizing algorithms.


Currently, the library has these algorithms

-Sorting
Bubble Sort
Insertion Sort
Selection Sort
Merge Sort
Quick Sort

-Searching
Linear Search
Binary Search


Github: https://lnkd.in/gZShfJ3
Refer to the documentation for more info: https://lnkd.in/gUyybRi

🎺 pip 20.2 is out! 🎺

You can install it by running python -m pip install --upgrade pip.

The highlights for this release are:
———————
The beta of the next-generation dependency resolver is available
Faster installations from wheel files

Improved handling of wheels containing non-ASCII file contents

Faster pip list using parallelized network operations

Installed packages now contain metadata about whether they were directly requested by the user (PEP 376’s REQUESTED file)

The int() function is smarter than it looks:

‎>>> int('42')
‎42
‎>>> int('४२')
‎42
‎>>> int('٤٢')
‎42

What’s new in PyCharm 2020.2?

New support for GitHub Pull Requests, in-editor exception preview, and a revamped in-place refactoring experience.

Find out how you can take your productivity to the next level!

Check their official website for more details

📢 announcement 📢

╭━━━━━━╮
┃ ● ══ ┃
┃██████┃
┃ ┃
┃Launching ┃
┃iampython ┃
┃ ┃
┃ ┃
┃██████┃
┃ ○ ┃
╰━━━━━━╯


I have been working on iampython website from past few months.

This will be a one stop platform for python developers.

https://iampython.com

This is Beta version

Please have a look and signup.

You can ask your questions from this website.

Actual project goes live on 15th Aug with great content and so many features.

Let me know your feedback

Handling more than 200 transactions per second using python-rq

What is python-rq ?

RQ (Redis Queue) is a simple Python library for queueing jobs and processing them in the background with workers. It is backed by Redis and it is designed to have a low barrier to entry. It can be integrated in your web stack easily.

RQ requires Redis >= 3.0.0.

This is huge ...

I am ordered, mutable, and I don't allow duplicates. What am I?

A tuple

A dictionary

A set

An OrderedDict

A list

Python facts: OOP concept

super() can be used outside of a class definition.

>>> class A:
x = 10

>>> class B(A):
x = 12

>>> super(B, B).x
10

The super() call can't use the zero or one argument form because the class can't be deduced automatically from the context.