In Python, Iterating means going through elements present in an array one by one. By using basic for and while loop of python we can iterate one-dimensional and two-dimensional array.

#### Example:

### Using for loop:

```
#Iterations using for loop
import numpy as np
array_0= np.array([[1,2,3],[4,5,6]])
for x in array_0:
for y in x:
print(y)
print()
```

**Output:**

1 2 3 4 5 6

### Using while loop:

```
#Iterations using while loop
import numpy as np
x = np.array([[1,2,3], [4,5,6]])
i = 0
j = 0
rows, cols = x.shape
while i < rows:
j = 0
while j < cols:
print(x[i][j])
j = j + 1
print()
i = i + 1
```

**Output:**

1 2 3 4 5 6