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Comprehensive Guide to Python's Format Specification Mini-Language

When you call str.format(), each replacement field may contain a format specifier that tells Python exactly how to render the corresponding argument. The specifier is introduced by a colon : and is composed of the following optional components in order: {[name][!conversion][:[[fill]align][sign][#][0...

Essential Utility Functions in Go

Time Formatting Go uses reference time Mon Jan 2 15:04:05 MST 2006 to format and parse dates. The numeric value 2006 is not a placeholder but the actual reference year. package main import ( "fmt" "time" ) func main() { now := time.Now() // RFC3339 is commonly used for timestamps...