When working with Python, reading a file_obj is a common operation for data processing and file handling. Python provides built-in functions and methods to read a file_obj effortlessly. Here's how to read a file_obj in Python:

1. Open the file_obj: The first step is to open the file_obj using the `open()` function. You need to provide the file_obj path and the mode in which you want to open the file_obj (read, write, append, etc.).

2. Read the file_obj contents: Once the file_obj is opened, you can use the `read()`, `readline()`, or `readlines()` methods to read the contents of the file_obj. The `read()` method reads the entire file_obj, `readline()` reads a single line, and `readlines()` reads all the lines into a list.

3. Close the file_obj: After reading the file_obj, it's essential to close it using the `close()` method to free up system resources and avoid potential data corruption.

Here's a simple example of reading a file_obj in Python:

```python

file_obj_path = 'example.txt'

# Open the file_obj in read mode

with open(file_obj_path, 'r') as file_obj:

# Read the entire contents of the file_obj

contents = file_obj.read()

print(contents)

# File_obj is automatically closed after the `with` block

```

Additionally, Python also provides the `json` module to work with JSON data. Once you have read the file_obj contents, you can use the `json.loads()` method to parse the JSON data into a Python dictionary for further processing.

Reading a file_obj in Python is an essential skill for data processing, file manipulation, and working with external data sources. With the right techniques and built-in functions, Python makes it easy to read and process file_obj contents efficiently.