Python - Execute Javascript, C++, easily

Hello Coders! This article explains how to execute code written in different programming languages like Javascript, C++, or GO in a Python-based program. The concept might help when the native language (Python in this case) becomes limited in some critical context and a better solution is to mix code from another language. Thanks for reading!

Executing JavaScript Code

You can execute JavaScript code within Python using the execjs library. Here's a simple example:

import execjs

js_code = """
function add(x, y) {
    return x + y;
}
"""

# Create a context
ctx = execjs.compile(js_code)

# Call the JavaScript function
result = ctx.call("add", 3, 4)
print(result)  # Output: 7

Executing C++ Code

To execute C++ code in Python, you can use the ctypes module or the subprocess module to run a compiled C++ executable. Here's an example using subprocess:

import subprocess

# Compile your C++ code first, e.g., with g++
# g++ -o my_program my_program.cpp

# Run the compiled executable
result = subprocess.run(["./my_program"], capture_output=True, text=True)

print(result.stdout)

Executing Go Code

You can execute Go code in Python by calling the Go executable or by embedding Go code in a C extension and then calling that extension from Python. Here's an example using the subprocess module:

import subprocess

# Create a Go source file
go_code = """
package main

import "fmt"

func main() {
    fmt.Println("Hello, Go!")
}
"""

with open("hello.go", "w") as f:
    f.write(go_code)

# Compile and run the Go code
result = subprocess.run(["go", "run", "hello.go"], capture_output=True, text=True)

print(result.stdout)

Conclusion

Remember, these examples demonstrate simple ways to execute code in other languages from Python. Depending on your requirements, you may need to explore more advanced techniques or libraries specific to each language for deeper integration.

Also, ensure you have the necessary compilers and interpreters installed for each language you intend to execute code in.

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