I have one function that calculates the difference between two numbers but I am facing the following error with this function: **TypeError: calculate_diff() missing 2 required positional arguments: ‘num1’ and ‘num2’** **in Python**.We are going to Learn about All Possible Solutions So Lets Get Start with This Article.

## How TypeError: missing 2 required positional arguments Error Occurs?

I have one function that calculates the difference between two numbers but I am facing the following error with this function. Here is my code.

```
def calculate_diff(num1, num2):
return num1-num2
output = calculate_diff()
print("Diff Between Two Number is: ", output)
```

Error That I am facing.

`TypeError: calculate_diff() missing 2 required positional arguments: 'num1' and 'num2'`

So here I am writing all the possible solutions that I have tried to resolve this error.

## How To Solve TypeError: missing 2 required positional arguments?

**How To Solve TypeError: missing 2 required positional arguments?**To Solve TypeError: missing 2 required positional arguments Just Giving Function to the Default Value. Default Value will act Like If You Give them value then it will Perform on that value else it will take Its Default Value. In the above code, I have the

**calculate_diff**function and that required two positional parameters num1 and num2. But I have Given Default values to both**num1=0**and**num2=0**. So when I am using my**calculate_diff**function and if I am not giving value to this function then it will take this default value. and Give me output just like below:**Diff Between Two Number is: 0**And Now, Your error must be solved.**TypeError: missing 2 required positional arguments**To Solve TypeError: missing 2 required positional arguments This error Usually Occurs when You are not passing Positional Parameters to the Function. So easiest ever method to solve this error Is Just to Pass the Required Positional Parameters to the Function. Here is My Function named

**calculate_diff**and that is required two positional Parameters**num1**and**num2**. When I am trying to use**calculate_diff**I have passed both parameters as**10**and**9**. So that My function gets its Positional Parameters and it will return me Calculated Difference. Just like Below Output. And My Problem was Resolved Successfully.

There are Two Main Methods to solve this error. The first method is Just to Pass the Required Parameters to the function and the Second one is You need to Assing the Default Value of the Function. Let’s see both Solutions one by one.

## Solution 1: Pass required Params

This error Usually Occurs when You are not passing Positional Parameters to the Function. So easiest ever method to solve this error Is Just to Pass the Required Positional Parameters to the Function.

```
def calculate_diff(num1, num2):
return num1-num2
output = calculate_diff(10, 9)
print("Diff Between Two Number is: ", output)
```

Here is My Function named **calculate_diff** and that is required two positional Parameters **num1 **and **num2**. When I am trying to use **calculate_diff** I have passed both parameters as **10** and **9**. So that My function gets its Positional Parameters and it will return me Calculated Difference. Just like Below Output.

`Diff Between Two Number is: 1`

And My Problem was Resolved Successfully.

## Solution 2: Give Default Value

The second Solution is Just Giving Function to the Default Value. Default Value will act Like If You Give them value then it will Perform on that value else it will take Its Default Value.

```
def calculate_diff(num1=0, num2=0):
return num1-num2
output = calculate_diff()
print("Diff Between Two Number is: ", output)
```

In the above code, I have the **calculate_diff** function and that required two positional parameters num1 and num2. But I have Given Default values to both **num1=0** and **num2=0**. So when I am using my **calculate_diff** function and if I am not giving value to this function then it will take this default value. and Give me output just like below.

`Diff Between Two Number is: 0`

And If I am passing value then it will return me a value on behalf of value. Just like below.

```
def calculate_diff(num1=0, num2=0):
return num1-num2
output = calculate_diff(10, 9)
print("Diff Between Two Number is: ", output)
```

Output Of Above code is.

`Diff Between Two Number is: 1`

And Now, Your error must be solved. thank You for Reading Our Article.

**Conclusion**

It’s all About this error. I hope We solved Your error. Comment below Your thoughts and your queries. Also, Comment below which solution worked for you?

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