The **`compile()`** method takes in an input code and returns a code object that can easily be executed. 

#   
#  Syntax


```python
compile(*source, filename, mode, flags=0, dont_inherit=False, optimize=-1*)
```

#   
#  Parameters
* `source`: The source can be an AST object or a normal/byte string.

* `filename`: The file from where we read the code. 

* `mode`: There are three types of mode. For a single expression source, the mode is **`eval`**. If the code consists of a single interactive statement, the mode is **`single`**. The **`exec`** mode takes a block of a code that has statements, classes, and functions.

* `flags` (optional): The default for this is `0`. 

* `dont_inherit` (optional): The default for this is `0`.

* `optimize` (optional): The optimization level of the compiler can be specified by this. Its default value is -1.

##  
## Use
If the Python code you have is in the form of a string or an AST object and you need to change it to a code object, use `compile()`.


##  
## Code


number = 30 
x = compile('number', 'test', 'single')
eval(x)

>In order to execute the result returned by `compile()`, there are two inbuilt functions that can be used:
>1) `exec()`
>2) `eval()`


What is compile() in Python?

The compile() method converts input code to an executable code object, using modes like eval, single, and exec.