Go Syntax Implementation in Python

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By Editorial Team Last updated Apr 30, 2022 122

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Go syntax implementation in python.

In Golang, we can create parallel tasks via keyword go:

//Golang
//...
go XXXX(arg1,arg2)
//...

In golang, the thread creating has following features:

The parameter passing is the same as the original function defined by user.
The original function is still usable as defined.

However, in python creating a thread is stupid:

#Python
#...
t = threading.Thread(target=XXX, args=(arg1,arg2))
t.start()
#...

How To Use in Python

If the function is self-defined, you can use decorator @gostyle.startable() like following:

import time
import gostyle
@gostyle.startable()
def test_thread(title:str):
    while True:
        time.sleep(1)
        print(title)
# Start the thread 
test_thread.start("Start")
# Note that the expression "test_thread('Normal')" can still run the original function in main thread.

Or, if the function is not a class/object method:

import time
import gostyle
@gostyle.destination()
def test_thread(title:str):
    while True:
        time.sleep(1)
        print(title)
# Start the thread 
gostyle.to.test_thread("Go To Destination")
# Note that the expression "test_thread('Normal')" can still run the original function in main thread.

Or:

import time
from gostyle import go
@go.goable()
def test_thread(title:str):
    while True:
        time.sleep(1)
        print(title)
# Start the thread 
    go.test_thread("Go")
# Note that the expression "test_thread('Normal')" can still run the original function in main thread.

If the function is not self-defined(you can not add decorator to the function), or the function is a method of a class/object(the function you defined is hard to attach to “go”(same as “to”) object in this package), you can use syntax like following:

import time
from gostyle import go
def test_thread(title:str):
    while True:
        time.sleep(1)
        print(title)
# Start the thread 
go(test_thread)("Call")

Run-Forever and Daemonize

The daemon parameter controls the deamon option in package threading. and the forever parameter lets you get rid of a while True: expression in the function you defined.

import time
from gostyle import go
def test_thread(title:str):
    # No Internal WHILE Here.
    time.sleep(1)
    print(title)
# Start the thread 
go(test_thread, forever=True)("Call Forever")

import time
from gostyle import go
@gostyle.startable(forever=True)
def test_thread(title:str):
    # No Internal WHILE Here.
    time.sleep(1)
    print(title)
# Start the thread 
test_thread.start("Start Loop")

In Golang, defer is used to do things(usually cleaning-up) after a function returns.

How To Use in Python

Usage of decorator defer_inside:

from gostyle import defer_inside, defer
@defer_inside
def great_func():
    a = [1,2,3]
    b = 8
    defer(
        lambda : a.append(7),
        lambda : print(a),
        lambda : print(b)
    )
    a.append(9)
    return a,b
print(great_func())

Threading

Manage Threads started by gostyle Collect return values Single Instance support Yield Support Multithreading Support

Defer

Multi-times Defer Support

Queue

Queue Wrapper

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