Here are seven ways to check if a list is empty in Python.

- Using
**not in**operator - Using
**len()**method - By
**comparing**with an**empty list** - Check the
**empty**list**using**the**PEP****8**recommended method - Comparing a given list with an empty list using
**!= operator** - Using list
**comprehension**+**len()** - Using
**NumPy**module

**Method 1: Using the not in operator**

To **check** if a **list** is **empty** in **Python**, you can use the **not **operator with the **if condition**. The **not** **operator** checks the existence of a specified value inside a given sequence, but it returns a value opposite to that of the **in **operator.

```
listA = []
if not listA:
print('List is empty')
else:
print('List is not empty')
```

**Output**

`List is empty`

**Method 2: Using the len() Function**

The len() function is used to find the number of elements in the list. To check if the list is empty using len(), pass the empty list to the **len()** function, and if we get 0, that means the list is empty.

```
listA = []
if not len(listA):
print('List is empty')
else:
print('List not empty')
```

**Output**

`List is empty`

We can also use the double equal to compare with 0 to check if the list is empty.

```
listA = []
if len(listA) == 0:
print('List is empty')
else:
print('List not empty')
```

**Output**

`List is empty`

**Method 3: Compare the empty list with another empty list.**

Compare our current list to [ ]; we will get an idea if the list is empty.

```
listA = []
if listA == []:
print('List is empty')
else:
print('List not empty')
```

**Output**

`List is empty`

**Method 4: Checking an empty list using the PEP 8 recommended method**

The PeP8 allows us to determine whether a list in Python is empty.

```
list1 = {"A": 1, "B": 2, "C": 3}
list2 = []
if list2:
print("list is not empty")
else:
print("list is empty")
```

**Output**

`list is empty`

**Method 5: Comparing a given list with an empty list using != operator**

```
import numpy as np
list2 = []
if list2 != []:
print("The list is not empty")
else:
print("Empty List")
```

**Output**

`Empty List`

**Method 6: Using list comprehension + len() **

**Output**

`['not empty']`

**Method 7: numpy module**

```
import numpy as np
list2 = []
result_array = np.array(list2)
if result_array.size == 0:
print('Empty list')
else:
print('List is not Empty')
```

**Output**

`Empty list`

That’s it.

Krunal Lathiya is a seasoned Computer Science expert with over eight years in the tech industry. He boasts deep knowledge in Data Science and Machine Learning. Versed in Python, JavaScript, PHP, R, and Golang. Skilled in frameworks like Angular and React and platforms such as Node.js. His expertise spans both front-end and back-end development. His proficiency in the Python language stands as a testament to his versatility and commitment to the craft.