Date/Time Format¶
Please refer to https://docs.python.org/3/library/datetime.html#strftime-and-strptime-format-codes for a complete list of formats.
Time to String¶
Shopping on Amazon
Amazon Price Tracking & Alert
Return Items
- It seems to me that processing of returned and received item is much much faster if you choose to to return as Amazon credit.
Customer Service Online Chat
- Goto https://www.amazon.com/gp/help/customer/display.html?nodeId=200127470 .
- Scroll down to …
Tips on the find command in Linux
Better Alternatives to find
There are some better alternatives to find.
The Python module pathlib is the most suitable one for relatively complex jobs.
fd, ripgrep, fselect and osquery
are other alternatives.
| find | fd | fselect | osquery | ripgrep (rg) | |
|---|---|---|---|---|---|
| Primary Use Case | File metadata search & execution (scripting) | Interactive file name search … |
Hands on dict in Python
Tips and Traps¶
Starting from Python 3.7,
dictpreserves insertion order (i.e.,dictis ordered). There is no need to useOrderedDictany more in Python 3.7+. However,setin Python is implemented as an unordered hashset and thus is neither ordered nor sorted. A trick to dedup an iterablevalues
Install Python in macOS
There are a few ways to install Python in Mac.
-
Install system-wide via the official Python installation package.
-
Install locally using Homebrew (recommended).
You should avoid installing multiple versions of Python in your system. It usually brings more troubles than conveniences. Python virtual environemnts ( via uv ) and Docker containers are …
My Docker Images
Recommended Docker Images and Tags
Most of my Docker images have different variants
(corresponding to tags latest, next, etc)
for different use cases.
And each tag might have histocial versions
with the pattern mmddhh
(mm, dd and hh stand for the month, day and hour)
for fallback if a tag …