Environment & Tooling

Go ships as a single toolchain. go is the compiler, package manager, test runner, formatter, linter, and documentation generator. No pip vs conda vs poetry vs uv. One tool.

# Install Go (or use your OS package manager)
# https://go.dev/dl/

# Create a new project
mkdir my_project && cd my_project
go mod init github.com/you/my_project

# Build, run, test
go build ./...           # compile everything
go run main.go           # compile + run
go test ./...            # run all tests
go test -bench=. ./...   # run benchmarks
go fmt ./...             # auto-format (non-negotiable)
go vet ./...             # static analysis
go get github.com/pkg/x  # add a dependency
go doc fmt.Println       # view docs from terminal

Project Structure

my_project/
├── pyproject.toml
├── src/
│   └── my_project/
│       ├── __init__.py
│       └── main.py
└── tests/
    └── test_main.py

my_project/
├── go.mod          // module + dependencies
├── go.sum          // checksum lock file
├── main.go         // entry point
├── handler.go      // same package, same dir
├── handler_test.go // tests live next to code
└── internal/       // private packages
    └── store/
        └── store.go