mirhosting/pytago

By mirhosting

•Updated about 5 years ago

Docker autobuild of pytago project

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mirhosting/pytago repository overview

Pytago is a source-to-source transpiler that converts some Python into human-readable Go.

Try out the web demo⁠

⁠Installation and usage

There are two "officially" supported ways to use Pytago:

A web application you can run via docker
A locally-installed command-line tool

⁠Web application

⁠Prerequisites

Docker⁠

⁠Installation

git clone https://github.com/nottheswimmer/pytago/
cd pytago
docker build -t pytago .

⁠Usage

docker run -p 8080:8080 -e PORT=8080 -it pytago

# User interface
open http://127.0.0.1:8080/

# API
curl --request POST 'http://127.0.0.1:8080/' \
  --header 'Content-Type: application/json'  \
  --data-raw '{"py": "print(\"Hello World\")"}'

⁠Local command-line application

⁠Prerequisites

Go 1.16.x⁠
Python 3.10.x⁠
- No, it will not work on 3.9. Search the code for "match."
go get -u golang.org/x/tools/cmd/goimports mvdan.cc/gofumpt github.com/segmentio/golines

⁠Installation

⁠via pip

pip install pytago

⁠via setup.py (dev)

git clone https://github.com/nottheswimmer/pytago/
cd pytago
pip install -e .

⁠via setup.py

git clone https://github.com/nottheswimmer/pytago/
cd pytago
pip install .

⁠Usage

usage: pytago [-h] [-o OUTFILE] INFILE

positional arguments:
  INFILE                read python code from INFILE

options:
  -h, --help            show this help message and exit
  -o OUTFILE, --out OUTFILE
                        write go code to OUTFILE

⁠Examples

All examples presented here are used as tests for the program.

⁠listappend

⁠Python

def main():
    a = [1, 2, 3]
    a.append(4)
    print(a)

if __name__ == '__main__':
    main()

⁠Go

package main

import "fmt"

func main() {
	a := []int{1, 2, 3}
	a = append(a, 4)
	fmt.Println(a)
}

⁠abs

⁠Python

def main():
    print(abs(-6))
    print(abs(3))

if __name__ == '__main__':
    main()

⁠Go

package main

import (
	"fmt"
	"math"
)

func main() {
	fmt.Println(math.Abs(-6))
	fmt.Println(math.Abs(3))
}

⁠helloworld

⁠Python

def main():
    print("hello world")


if __name__ == '__main__':
    main()

⁠Go

package main

import "fmt"

func main() {
	fmt.Println("hello world")
}

⁠input

⁠Python

def main():
    print("Hi, what's your name?")
    name = input("Name: ")
    print("Hi", name, "how old are you?")
    age = int(input("Age: "))
    print("Describe yourself in one sentence:")
    description = input()
    print("So your name is", name, "and you are", age, "years old, and your description is", '"' + description + '"')


if __name__ == '__main__':
    main()

⁠Go

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func main() {
	fmt.Println("Hi, what's your name?")
	name := func(msg string) string {
		fmt.Print(msg)
		text, _ := bufio.NewReader(os.Stdin).ReadString('\n')
		return strings.ReplaceAll(text, "\n", "")
	}("Name: ")
	fmt.Println("Hi", name, "how old are you?")
	age := func() int {
		i, err := strconv.ParseInt(func(msg string) string {
			fmt.Print(msg)
			text, _ := bufio.NewReader(os.Stdin).ReadString('\n')
			return strings.ReplaceAll(text, "\n", "")
		}("Age: "), 10, 64)
		if err != nil {
			panic(err)
		}
		return int(i)
	}()
	fmt.Println("Describe yourself in one sentence:")
	description := func() string {
		text, _ := bufio.NewReader(os.Stdin).ReadString('\n')
		return strings.ReplaceAll(text, "\n", "")
	}()
	fmt.Println(
		"So your name is",
		name,
		"and you are",
		age,
		"years old, and your description is",
		"\""+description+"\"",
	)
}

⁠randomness

⁠Python

import random


def main():
    print(random.random())
    print(random.randrange(9000, 10000))
    print(random.randint(9000, 10000))
    items = ["Hello", 3, "Potato", "Cake"]
    print(random.choice(items))
    random.shuffle(items)
    print(items)
    u = random.uniform(200, 500)
    print(u)
    if random.random() > 0.5:
        print("50/50")

    names = ['Kitchen', 'Animal', 'State', 'Tasty', 'Big', 'City', 'Fish', 'Pizza', 'Goat', 'Salty', 'Sandwich',
             'Lazy', 'Fun']
    company_type = ['LLC', 'Inc', 'Company', 'Corporation']
    company_cuisine = ['Pizza', 'Bar Food', 'Fast Food', 'Italian', 'Mexican', 'American', 'Sushi Bar', 'Vegetarian']
    for x in range(1, 501):
        business = {
            'name': names[random.randint(0, (len(names) - 1))] + ' ' + names[
                random.randint(0, (len(names) - 1))] + ' ' + company_type[random.randint(0, (len(company_type) - 1))],
            'rating': random.randint(1, 5),
            'cuisine': company_cuisine[random.randint(0, (len(company_cuisine) - 1))]
        }
        print(business)


if __name__ == '__main__':
    main()

⁠Go

package main

import (
	"fmt"
	"math/rand"
	"time"
)

func init() {
	rand.Seed(time.Now().UnixNano())
}

func main() {
	fmt.Println(rand.Float64())
	fmt.Println(func(start int, stop int) int {
		n := stop - start
		return rand.Intn(n) + start
	}(9000, 10000))
	fmt.Println(func(start int, stop int) int {
		n := stop - start
		return rand.Intn(n) + start
	}(9000, 10000+1))
	items := []interface{}{"Hello", 3, "Potato", "Cake"}
	fmt.Println(items[rand.Intn(len(items))])
	rand.Shuffle(len(items), func(i int, j int) {
		items[i], items[j] = items[j], items[i]
	})
	fmt.Println(items)
	u := func(a float64, b float64) float64 {
		return rand.Float64()*(b-a) + b
	}(200, 500)
	fmt.Println(u)
	if rand.Float64() > 0.5 {
		fmt.Println("50/50")
	}
	names := []string{
		"Kitchen",
		"Animal",
		"State",
		"Tasty",
		"Big",
		"City",
		"Fish",
		"Pizza",
		"Goat",
		"Salty",
		"Sandwich",
		"Lazy",
		"Fun",
	}
	company_type := []string{"LLC", "Inc", "Company", "Corporation"}
	company_cuisine := []string{
		"Pizza",
		"Bar Food",
		"Fast Food",
		"Italian",
		"Mexican",
		"American",
		"Sushi Bar",
		"Vegetarian",
	}
	for x := 1; x < 501; x++ {
		business := map[string]interface{}{"name": names[func(start int, stop int) int {
			n := stop - start
			return rand.Intn(n) + start
		}(0, len(names)-1+1)] + " " + names[func(start int, stop int) int {
			n := stop - start
			return rand.Intn(n) + start
		}(0, len(names)-1+1)] + " " + company_type[func(start int, stop int) int {
			n := stop - start
			return rand.Intn(n) + start
		}(0, len(company_type)-1+1)], "rating": func(start int, stop int) int {
			n := stop - start
			return rand.Intn(n) + start
		}(1, 5+1), "cuisine": company_cuisine[func(start int, stop int) int {
			n := stop - start
			return rand.Intn(n) + start
		}(0, len(company_cuisine)-1+1)]}
		fmt.Println(business)
	}
}

⁠string_methods

⁠Python

def main():
    lower = "hello world"
    crazy = "HeLLo WoRlD"
    upper = "HELLO WORLD"
    lol = "---LOL---"
    hearts = "🧡💛💚💙💜"
    arabic_indic_digit = "٠"
    whitespace = " \v\f\t\r\n"
    s_hello_s = whitespace + lower + whitespace
    multiline = lower + "\n" + crazy + "\r\n" + upper + "\n"

    print(crazy.capitalize())
    print(lower.endswith("world"))
    print(lower.find(" "))
    print(lower.find(" ", 2))
    print(upper.find(" ", 7, 8))
    print(lower.index(" "))
    print(lower.index(" ", 2))
    print(upper.index(" ", 2, 8))
    print(lower.isalnum())
    print(hearts.isascii())
    print(arabic_indic_digit.isdecimal())
    print(arabic_indic_digit.isdigit())
    print(lower.islower())
    print(arabic_indic_digit.isnumeric())
    print(hearts.isprintable())
    print(whitespace.isspace())
    print(upper.isupper())
    print(hearts.join([lower, crazy, upper]))
    print(crazy.lower())
    print(s_hello_s.lstrip() + "|")
    print(lower.lstrip("h"))
    print(lower.removeprefix("hello "))
    print(lower.removesuffix(" world"))
    print(lower.replace("world", "gophers"))
    print(upper.replace("O", "OOOOO", 1))
    print(upper.rfind("O"))
    print(upper.rfind("O", 1))
    print(upper.rfind("O", 1, 6))
    print(upper.rindex("O"))
    print(upper.rindex("O", 1))
    print(upper.rindex("O", 1, 6))
    print(s_hello_s.rstrip() + "|")
    print(lower.rstrip("d"))
    print(lower.split())
    print(upper.split("L"))
    print(upper.split("L", 1))
    print(multiline.splitlines())
    print(upper.startswith("HELLO"))
    print(s_hello_s.strip() + "|")
    print(lol.strip("-"))
    print(crazy.title())
    print(crazy.upper())


if __name__ == '__main__':
    main()

⁠Go

package main

import (
	"bufio"
	"errors"
	"fmt"
	"strings"
	"unicode"
)

func main() {
	lower := "hello world"
	crazy := "HeLLo WoRlD"
	upper := "HELLO WORLD"
	lol := "---LOL---"
	hearts := "🧡💛💚💙💜"
	arabic_indic_digit := "٠"
	whitespace := " \u000b\f\t\r\n"
	s_hello_s := whitespace + lower + whitespace
	multiline := lower + "\n" + crazy + "\r\n" + upper + "\n"
	fmt.Println(strings.ToUpper(crazy[0:1]) + strings.ToLower(crazy[1:]))
	fmt.Println(strings.HasSuffix(lower, "world"))
	fmt.Println(strings.Index(lower, " "))
	fmt.Println(func() int {
		if r := strings.Index(lower[2:], " "); r != -1 {
			return r + 2
		}
		return -1
	}())
	fmt.Println(func() int {
		if r := strings.Index(upper[7:8], " "); r != -1 {
			return r + 7
		}
		return -1
	}())
	fmt.Println(func(X string, sub string) int {
		if i := strings.Index(X, sub); i != -1 {
			return i
		}
		panic(errors.New("ValueError: substring not found"))
	}(lower, " "))
	fmt.Println(func(X string, sub string, start int) int {
		if i := func() int {
			if r := strings.Index(X[start:], sub); r != -1 {
				return r + start
			}
			return -1
		}(); i != -1 {
			return i
		}
		panic(errors.New("ValueError: substring not found"))
	}(lower, " ", 2))
	fmt.Println(func(X string, sub string, start int, end int) int {
		if i := func() int {
			if r := strings.Index(X[start:end], sub); r != -1 {
				return r + start
			}
			return -1
		}(); i != -1 {
			return i
		}
		panic(errors.New("ValueError: substring not found"))
	}(upper, " ", 2, 8))
	fmt.Println(func(X string) bool {
		for _, r := range X {
			if !((unicode.IsLetter(r) || unicode.IsDigit(r)) && (unicode.IsDigit(r) || unicode.IsNumber(r))) {
				return false
			}
		}
		return true
	}(lower))
	fmt.Println(func(X string) bool {
		for _, r := range X {
			if r > unicode.MaxASCII {
				return false
			}
		}
		return true
	}(hearts))
	fmt.Println(func(X string) bool {
		for _, r := range X {
			if !unicode.Is(unicode.Nd, r) {
				return false
			}
		}
		return len(X) != 0
	}(arabic_indic_digit))
	fmt.Println(func(X string) bool {
		for _, r := range X {
			if !unicode.IsDigit(r) {
				return false
			}
		}
		return len(X) != 0
	}(arabic_indic_digit))
	fmt.Println(func(X string) bool {
		lower_found := false
		for _, r := range X {
			if !unicode.IsLower(r) {
				if !unicode.IsSpace(r) {
					return false
				}
			} else {
				lower_found = true
			}
		}
		return lower_found && len(X) != 0
	}(lower))
	fmt.Println(func(X string) bool {
		for _, r := range X {
			if !(unicode.IsDigit(r) || unicode.IsNumber(r)) {
				return false
			}
		}
		return len(X) != 0
	}(arabic_indic_digit))
	fmt.Println(func(X string) bool {
		for _, r := range X {
			if !unicode.IsPrint(r) {
				return false
			}
		}
		return true
	}(hearts))
	fmt.Println(func(X string) bool {
		for _, r := range X {
			if !unicode.IsSpace(r) {
				return false
			}
		}
		return len(X) != 0
	}(whitespace))
	fmt.Println(func(X string) bool {
		upper_found := false
		for _, r := range X {
			if !unicode.IsUpper(r) {
				if !unicode.IsSpace(r) {
					return false
				}
			} else {
				upper_found = true
			}
		}
		return upper_found && len(X) != 0
	}(upper))
	fmt.Println(strings.Join([]string{lower, crazy, upper}, hearts))
	fmt.Println(strings.ToLower(crazy))
	fmt.Println(strings.TrimLeftFunc(s_hello_s, unicode.IsSpace) + "|")
	fmt.Println(strings.TrimLeft(lower, "h"))
	fmt.Println(strings.TrimPrefix(lower, "hello "))
	fmt.Println(strings.TrimSuffix(lower, " world"))
	fmt.Println(strings.ReplaceAll(lower, "world", "gophers"))
	fmt.Println(strings.Replace(upper, "O", "OOOOO", 1))
	fmt.Println(strings.LastIndex(upper, "O"))
	fmt.Println(func() int {
		if r := strings.LastIndex(upper[1:], "O"); r != -1 {
			return r + 1
		}
		return -1
	}())
	fmt.Println(func() int {
		if r := strings.LastIndex(upper[1:6], "O"); r != -1 {
			return r + 1
		}
		return -1
	}())
	fmt.Println(func(X string, sub string) int {
		if i := strings.LastIndex(X, sub); i != -1 {
			return i
		}
		panic(errors.New("ValueError: substring not found"))
	}(upper, "O"))
	fmt.Println(func(X string, sub string, start int) int {
		if i := func() int {
			if r := strings.LastIndex(X[start:], sub); r != -1 {
				return r + start
			}
			return -1
		}(); i != -1 {
			return i
		}
		panic(errors.New("ValueError: substring not found"))
	}(upper, "O", 1))
	fmt.Println(func(X string, sub string, start int, end int) int {
		if i := func() int {
			if r := strings.LastIndex(X[start:end], sub); r != -1 {
				return r + start
			}
			return -1
		}(); i != -1 {
			return i
		}
		panic(errors.New("ValueError: substring not found"))
	}(upper, "O", 1, 6))
	fmt.Println(strings.TrimRightFunc(s_hello_s, unicode.IsSpace) + "|")
	fmt.Println(strings.TrimRight(lower, "d"))
	fmt.Println(strings.Fields(lower))
	fmt.Println(strings.Split(upper, "L"))
	fmt.Println(strings.SplitN(upper, "L", 1))
	fmt.Println(func(s string) (lines []string) {
		sc := bufio.NewScanner(strings.NewReader(s))
		for sc.Scan() {
			lines = append(lines, sc.Text())
		}
		return
	}(multiline))
	fmt.Println(strings.HasPrefix(upper, "HELLO"))
	fmt.Println(strings.TrimSpace(s_hello_s) + "|")
	fmt.Println(strings.Trim(lol, "-"))
	fmt.Println(func(s string) string {
		ws := true
		var sb strings.Builder
		for _, r := range s {
			if unicode.IsSpace(r) {
				ws = true
				sb.WriteRune(r)
			} else if ws {
				ws = false
				sb.WriteRune(unicode.ToUpper(r))
			} else {
				sb.WriteRune(unicode.ToLower(r))
			}
		}
		return sb.String()
	}(crazy))
	fmt.Println(strings.ToUpper(crazy))
}

⁠list_methods

⁠Python

def main():
    l1 = [1]
    l2 = ["hello", "how", "are", "you?"]
    l3 = [6.2, 1.6, 1.2, 20.1]

    l1.append(2)
    print(l1)

    l1.extend([4, 5])
    print(l1)

    l1.insert(3, 3)
    print(l1)

    print(l1.index(2))

    print(l1.count(3))

    l1.remove(3)
    print(l1)

    while l1:
        print(l1.pop())

    l3.clear()
    print(l3)

    l1.sort()
    print(l1)
    l2.sort()
    print(l2)
    l3.sort()
    print(l3)
    l3.sort(reverse=True)
    print(l3)

    l2.reverse()
    print(l2)

    l4 = l2.copy()
    l4.pop()
    print(l4)
    print(l2)

if __name__ == '__main__':
    main()

⁠Go

package main

import (
	"errors"
	"fmt"
	"reflect"
	"sort"
)

func main() {
	l1 := []int{1}
	l2 := []string{"hello", "how", "are", "you?"}
	l3 := []float64{6.2, 1.6, 1.2, 20.1}
	l1 = append(l1, 2)
	fmt.Println(l1)
	l1 = append(l1, []int{4, 5}...)
	fmt.Println(l1)
	l1 = append(l1, 3)
	copy(l1[3+1:], l1[3:])
	l1[3] = 3
	fmt.Println(l1)
	fmt.Println(func() int {
		for i, val := range l1 {
			if val == 2 {
				return i
			}
		}
		panic(errors.New("ValueError: element not found"))
	}())
	fmt.Println(func() int {
		n := 0
		for _, v := range l1 {
			if v == 3 {
				n += 1
			}
		}
		return n
	}())
	func(s *[]int, x int) {
		for i, val := range *s {
			if reflect.DeepEqual(val, x) {
				*s = append((*s)[:i], (*s)[i+1:]...)
				return
			}
		}
		panic(errors.New("ValueError: element not found"))
	}(&l1, 3)
	fmt.Println(l1)
	for len(l1) != 0 {
		fmt.Println(func(s *[]int) int {
			i := len(*s) - 1
			popped := (*s)[i]
			*s = (*s)[:i]
			return popped
		}(&l1))
	}
	l3 = nil
	fmt.Println(l3)
	sort.Ints(l1)
	fmt.Println(l1)
	sort.Strings(l2)
	fmt.Println(l2)
	sort.Float64s(l3)
	fmt.Println(l3)
	sort.Sort(sort.Reverse(sort.Float64Slice(l3)))
	fmt.Println(l3)
	func(arr []string) {
		for i, j := 0, len(arr)-1; i < j; i, j = i+1, j-1 {
			arr[i], arr[j] = arr[j], arr[i]
		}
	}(l2)
	fmt.Println(l2)
	l4 := func(s *[]string) (tmp []string) {
		tmp = append(tmp, *s...)
		return
	}(&l2)
	func(s *[]string) string {
		i := len(*s) - 1
		popped := (*s)[i]
		*s = (*s)[:i]
		return popped
	}(&l4)
	fmt.Println(l4)
	fmt.Println(l2)
}

⁠set_methods

⁠Python

def main():
    a = {1, 2, 3, 4}
    b = {4, 5, 6}
    b.add(7)
    print(a.union(b))
    print(a.intersection(b))
    print(a.difference(b))
    print(a.symmetric_difference(b))

    print(a.issubset(b))
    print(a.issuperset(b))


if __name__ == '__main__':
    main()

⁠Go

package main

import "fmt"

func main() {
	a := map[int]struct{}{1: {}, 2: {}, 3: {}, 4: {}}
	b := map[int]struct{}{4: {}, 5: {}, 6: {}}
	b[7] = struct{}{}
	fmt.Println(func(s1 map[int]struct{}, s2 map[int]struct{}) map[interface{}]struct{} {
		union := map[interface{}]struct{}{}
		for elt := range s1 {
			union[elt] = struct{}{}
		}
		for elt := range s2 {
			union[elt] = struct{}{}
		}
		return union
	}(a, b))
	fmt.Println(func(s1 map[int]struct{}, s2 map[int]struct{}) map[interface{}]struct{} {
		intersection := map[interface{}]struct{}{}
		for elt := range s1 {
			if func() bool {
				_, ok := s2[elt]
				return ok
			}() {
				intersection[elt] = struct{}{}
			}
		}
		return intersection
	}(a, b))
	fmt.Println(func(s1 map[int]struct{}, s2 map[int]struct{}) map[interface{}]struct{} {
		difference := map[interface{}]struct{}{}
		for elt := range s1 {
			if !func() bool {
				_, ok := s2[elt]
				return ok
			}() {
				difference[elt] = struct{}{}
			}
		}
		return difference
	}(a, b))
	fmt.Println(func(s1 map[int]struct{}, s2 map[int]struct{}) map[interface{}]struct{} {
		symmetric_difference := map[interface{}]struct{}{}
		for elt := range s1 {
			if !func() bool {
				_, ok := s2[elt]
				return ok
			}() {
				symmetric_difference[elt] = struct{}{}
			}
		}
		for elt := range s2 {
			if !func() bool {
				_, ok := s1[elt]
				return ok
			}() {
				symmetric_difference[elt] = struct{}{}
			}
		}
		return symmetric_difference
	}(a, b))
	fmt.Println(func(s1 map[int]struct{}, s2 map[int]struct{}) bool {
		for elt := range s1 {
			if !func() bool {
				_, ok := s2[elt]
				return ok
			}() {
				return false
			}
		}
		return true
	}(a, b))
	fmt.Println(func(s1 map[int]struct{}, s2 map[int]struct{}) bool {
		for elt := range s2 {
			if !func() bool {
				_, ok := s1[elt]
				return ok
			}() {
				return false
			}
		}
		return true
	}(a, b))
}

⁠global_code

⁠Python

A = [1, 2, 3]

for i, x in enumerate(A):
    A[i] += x

B = A[0]
C = A[0]
D: int = 3

while C < A[2]:
    C += 1

if C == A[2]:
    print('True')


def main():
    print("Main started")
    print(A)
    print(B)
    print(C)
    print(D)


if __name__ == '__main__':
    main()

⁠Go

package main

import "fmt"

var (
	A = []int{1, 2, 3}
	B int
	C int
	D int
)

func init() {
	for i, x := range A {
		A[i] += x
	}
	B = A[0]
	C = A[0]
	D = 3
	for C < A[2] {
		C += 1
	}
	if C == A[2] {
		fmt.Println("True")
	}
}

func main() {
	fmt.Println("Main started")
	fmt.Println(A)
	fmt.Println(B)
	fmt.Println(C)
	fmt.Println(D)
}

⁠boolnumcompare

⁠Python

def main():
    print(1 == True)
    print(1 == False)
    print(0 == True)
    print(0 == False)
    print()
    print(1. == True)
    print(1. == False)
    print(0. == True)
    print(0. == False)
    print()
    print(1+0j == True)
    print(1+0j == False)
    print(0+0j == True)
    print(0+0j == False)
    print()
    print(2 == True)

if __name__ == '__main__':
    main()

⁠Go

package main

import "fmt"

func main() {
	fmt.Println(1 == 1)
	fmt.Println(1 == 0)
	fmt.Println(0 == 1)
	fmt.Println(0 == 0)
	fmt.Println()
	fmt.Println(1.0 == 1)
	fmt.Println(1.0 == 0)
	fmt.Println(0.0 == 1)
	fmt.Println(0.0 == 0)
	fmt.Println()
	fmt.Println(1+0.0i == 1)
	fmt.Println(1+0.0i == 0)
	fmt.Println(0+0.0i == 1)
	fmt.Println(0+0.0i == 0)
	fmt.Println()
	fmt.Println(2 == 1)
}

⁠add

⁠Python

def main():
    print(add(2, 2))


def add(a: int, b: int) -> int:
    return a + b


if __name__ == '__main__':
    main()

⁠Go

package main

import "fmt"

func main() {
	fmt.Println(add(2, 2))
}

func add(a int, b int) int {
	return a + b
}

⁠exponents

⁠Python

def main():
    print(2 ** 8)


if __name__ == '__main__':
    main()

⁠Go

package main

import (
	"fmt"
	"math"
)

func main() {
	fmt.Println(math.Pow(2, 8))
}

⁠variables

⁠Python

def main():
    a = 3
    b = 7
    a = a + b
    print(a + b)
    another_scope()


def another_scope():
    a = 1
    b = 12
    a = a + b
    print(a + b)


if __name__ == '__main__':
    main()

⁠Go

package main

import "fmt"

func main() {
	a := 3
	b := 7
	a = a + b
	fmt.Println(a + b)
	another_scope()
}

func another_scope() {
	a := 1
	b := 12
	a = a + b
	fmt.Println(a + b)
}

⁠floats

⁠Python

def main():
    a = 7
    b = 3
    c = 4.5
    print(a / b)
    print(a // b)
    print(a / c)
    print(a // c)
    print(a + b)
    print(a + c)


if __name__ == '__main__':
    main()

⁠Go

package main

import (
	"fmt"
	"math"
)

func main() {
	a := 7
	b := 3
	c := 4.5
	fmt.Println(float64(a) / float64(b))
	fmt.Println(a / b)
	fmt.Println(float64(a) / c)
	fmt.Println(math.Floor(float64(a) / c))
	fmt.Println(a + b)
	fmt.Println(float64(a) + c)
}

⁠numlist

⁠Python

def main():
    a = [1, 2, 3]
    print(a[0])
    print(a[1])
    print(a[2])
    a.append(4)
    print(a[3])
    a += [5, 6, 7]
    a = a + [8, 9, 10]
    print(a[4])
    print(a[-1])

if __name__ == '__main__':
    main()

⁠Go

package main

import "fmt"

func main() {
	a := []int{1, 2, 3}
	fmt.Println(a[0])
	fmt.Println(a[1])
	fmt.Println(a[2])
	a = append(a, 4)
	fmt.Println(a[3])
	a = append(a, []int{5, 6, 7}...)
	a = append(a, []int{8, 9, 10}...)
	fmt.Println(a[4])
	fmt.Println(a[len(a)-1])
}

⁠loops

⁠Python

def main():
    a = [1, 2, 3]
    for v in a:
        print(v)

    for i, v in enumerate(a):
        print(i + v)

    for i in range(5):
        print(i)

    for i in range(10, 15):
        print(i)

    for i in range(10, 15, 2):
        print(i)

    for j in range(15, 10, -1):
        print(j)

    for j in range(15, 10, -2):
        print(j)

if __name__ == '__main__':
    main()

⁠Go

package main

import "fmt"

func main() {
	a := []int{1, 2, 3}
	for _, v := range a {
		fmt.Println(v)
	}
	for i, v := range a {
		fmt.Println(i + v)
	}
	for i := 0; i < 5; i++ {
		fmt.Println(i)
	}
	for i := 10; i < 15; i++ {
		fmt.Println(i)
	}
	for i := 10; i < 15; i += 2 {
		fmt.Println(i)
	}
	for j := 15; j > 10; j-- {
		fmt.Println(j)
	}
	for j := 15; j > 10; j -= 2 {
		fmt.Println(j)
	}
}

⁠strings

⁠Python

def main():
    a = "hello"
    b = "world"
    c = a + " " + b
    print(c)
    print(double_it(c))
    print(c[1])
    print(c[1:6])


def double_it(c: str) -> str:
    return c + c


if __name__ == '__main__':
    main()

⁠Go

package main

import "fmt"

func main() {
	a := "hello"
	b := "world"
	c := a + " " + b
	fmt.Println(c)
	fmt.Println(double_it(c))
	fmt.Println(string(c[1]))
	fmt.Println(c[1:6])
}

func double_it(c string) string {
	return c + c
}

⁠logical

⁠Python

def main():
    a = True
    b = False
    print(a)
    print(b)
    print(a and b)
    print(a or b)
    print(not a)
    print(not b)
    print(a and not b)
    print(a or not b)


if __name__ == '__main__':
    main()

⁠Go

package main

import "fmt"

func main() {
	a := true
	b := false
	fmt.Println(a)
	fmt.Println(b)
	fmt.Println(a && b)
	fmt.Println(a || b)
	fmt.Println(!a)
	fmt.Println(!b)
	fmt.Println(a && !b)
	fmt.Println(a || !b)
}

⁠maths

⁠Python

import math

def main():
    print(math.sin(3))
    print(math.cosh(3))
    print(math.pi)
    print(math.acosh(6))
    print(math.atan2(4, 7))

if __name__ == '__main__':
    main()

⁠Go

package main

import (
	"fmt"
	"math"
)

func main() {
	fmt.Println(math.Sin(3))
	fmt.Println(math.Cosh(3))
	fmt.Println(math.Pi)
	fmt.Println(math.Acosh(6))
	fmt.Println(math.Atan2(4, 7))
}

⁠requestslib

⁠Python

import requests


def main():
    resp = requests.get("http://tour.golang.org/welcome/1")
    print(resp.text)

if __name__ == '__main__':
    main()

⁠Go

package main

import (
	"fmt"
	"io/ioutil"
	"net/http"
)

func main() {
	resp, err := http.Get("http://tour.golang.org/welcome/1")
	if err != nil {
		panic(err)
	}
	defer resp.Body.Close()
	fmt.Println(func() string {
		body, err := ioutil.ReadAll(resp.Body)
		if err != nil {
			panic(err)

Tag summary

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Content type

Image

Digest

Size

160.2 MB

Last updated

about 5 years ago

docker pull mirhosting/pytago