Menu
e-lo
  • Home
    • Tech
    • Inspiration and about
  • Database
    • T-SQL
    • SQL Server quick
    • SQL server docs
    • MySql quick sheet
    • Postgre
    • InfluxDB
  • Programming
    • Automating the boring stuff
    • Python 101
    • Python Docs
    • Python Logging
    • cSharp Overview
    • Powershell Latest
    • Powershell 4 lang ref
    • MS Azure PS ref
    • MS Azure CLI ref
  • Azure
    • AZ-104-MS Azure Administrator 101 quick ref
    • AZ-104 Lab
    • MS Windows virtual machines in Azure
    • MS ARM Docs
    • MS ARM Tutorial
    • MS Deployment scripts (intern/extern)
    • ARM Quickstart
    • MS ARM templates 4h
  • Az Adm
    • AD 101
    • Governance and Compliance 102
    • Administration 103
    • Virtual Networking 104
    • Storage 107 (With table (NoSQL and more))
    • Virtual Machines 108
    • Azure Virtual Machines 101
    • Monitor VM (and market)
  • Linux
    • Top CMD’s
    • Useful CMD Linux
    • ss64 Linux
    • Ubuntu
    • 30 things Ubuntu 18.04
  • Zen
    • Not thinking about anything is Zen
e-lo

PEP 8

Posted on January 30, 2020January 30, 2020 by espenk

Programming Recommendations

https://www.python.org/dev/peps/pep-0008/#programming-recommendations

Use is not operator rather than not … is. While both expressions are functionally identical, the former is more readable and preferred.

Always use a def statement instead of an assignment statement that binds a lambda expression directly to an identifier.

Derive exceptions from Exception rather than BaseException. Direct inheritance from BaseException is reserved for exceptions where catching them is almost always the wrong thing to do.

Design exception hierarchies based on the distinctions that code catching the exceptions is likely to need, rather than the locations where the exceptions are raised. Aim to answer the question “What went wrong?” programmatically, rather than only stating that “A problem occurred” (see PEP 3151 for an example of this lesson being learned for the builtin exception hierarchy)

For sequences, (strings, lists, tuples), use the fact that empty sequences are false.

Yes: if not seq:
if seq:

No: if len(seq):
if not len(seq):

RSS Azure

  • Azure and HITRUST publish shared responsibility matrix January 14, 2021

RSS Python

  • PEP 651: Robust Stack Overflow Handling January 18, 2021

Cloud

ARM (8) azure (23) cmd (1) Django (4) Docker (1) e-lo (2) Flask (2) Github (9) Grafana (2) Information (1) Information Retrieval (11) JAVA (1) kivy (2) Kotlin (4) linux (11) mobile (2) Natural Language Prossesing (NLP) (2) Net.Core (1) Networking and Security (2) OPC (2) PEP8 (1) Philosophy (3) Python (41) Python Networking and Security (2) Reason (2) RMQ (2) Solr (11) Sql (10) VSC (1) Warframe (2) WMVARE (4) Zabbix (7)

Recent Posts

  • 1 TODO ARM Lab 105 MS (Deployment create a pipeline)
  • 2 TODO MS ARM Template 4h
  • TODO Cryptography with Python – Caesar Cipher
  • 3 TODO Udemy AZ-104 Microsoft Azure Administrator Exam Certification (Scott Duffy)
  • ARM Lab 104 MS (Deployment and more)

Archives

Meta

  • Log in
  • Entries feed
  • Comments feed
  • WordPress.org
©2021 e-lo | Powered by WordPress & Superb Themes