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Answer 
In Python, an iterative statement (also known as a loop) is a control flow statement that allows the programmer to execute a block of code repeatedly until a certain condition is met. There are two types of iterative statements in Python:
1. `for` loop: This loop is used for iterating over a sequence (such as a list, tuple, string, or range), or any other iterable object. The general syntax of a `for` loop is:
```
for variable in sequence:
# code to be executed
```
In this syntax, the `variable` takes the value of each item in the `sequence` one by one, and the code inside the loop is executed for each value of `variable`.
2. `while` loop: This loop is used for executing a block of code repeatedly as long as a certain condition is true. The general syntax of a `while` loop is:
```
while condition:
# code to be executed
```
In this syntax, the `condition` is checked at the beginning of each iteration of the loop, and if it is true, the code inside the loop is executed. The loop continues until the `condition` becomes false.
Here is an example of a `for` loop that iterates over a list of numbers and prints each number:
```python
numbers = [1, 2, 3, 4, 5]
for num in numbers:
print(num)
```
And here is an example of a `while` loop that counts from 1 to 5 and prints each number:
count = 1
while count <= 5:
print(count)
count += 1
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Main problem statement : import a .xlsx file in python with a dataset value then after import we need to ensure that every time I enter a value in a row ; row must be added by 1 and automatically value changes to a row using python script without manually intervention .
Hi i am vishnu. I did my Post Diploma in Tool design after DME and am now working in an MNC as contract base which will be completed on April 2020. Now i am in search of a job and i want to know any other courses like PYTHON or SAP which is best as i am not having any job opportunities in my domain. Please suggest a course and tell me whether I can do it or not as I only hold a Diploma degree
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