> ## Documentation Index
> Fetch the complete documentation index at: https://rajanand.org/llms.txt
> Use this file to discover all available pages before exploring further.

# Simple Python Programs Part 01

### Convert a list into a string

```python theme={"system"}
list1 = ['R', 'a', 'j', 'a', 'n', 'a', 'n', 'd']
str1 = ''.join(list1)

print(str1)
print(type(str1))
```

```
Output:
Rajanand
<class 'str'>
```

### Reverse a string

```python theme={"system"}
str1 = "Programming"
str2 = str1[::-1]

print(str2)
```

```
Output:
gnimmargorP
```

### Check if a string is a palindrome using a function

```python theme={"system"}
def is_palindrome(str1):
    """
    Palindrome is a string that reads the same forward and backward.
    """
  str2 = str1[::-1]

  if str1 == str2:
      return "The string is a palindrome"
  else:
      return "The string is not a palindrome"


print(is_palindrome("palindrome"))
print(is_palindrome("malayalam"))
```

```
Output:
The string is not a palindrome
The string is a palindrome
```

### Count the whitespace in a string

```python theme={"system"}
str1 = "Python is a programming language"
count = str1.count(" ")

print(count)
```

```
Output:
4
```

### Count a character in a string

```python theme={"system"}
str1 = "Python is a programming language"
count = str1.upper().count("P")

print(count)
```

```
Output:
2
```

### Check a number is prime or not

it is not handling the negative numbers and zero

```python theme={"system"}
num1 = 10

if num1 > 1:
    for i in range(2, num1):
        if num1 % i == 0:
            print("The number is not a prime number")
            break
    else:
        print("The number is a prime number")
```

### Find a factorial of a number

```python theme={"system"}
def factorial(num1):
    """
    Factorial is the product of all positive integers less than or equal to a given positive integer.
    """
    if num1 == 0 or num1 == 1:
        return 1
    else:
        return num1 * factorial(num1 - 1)

print(factorial(8))
```

```
Output:
40320
```

### Find a fibonacci series

```python theme={"system"}
def fibonacci(num1):
    """
    Fibonacci series is a sequence of numbers where each number is the sum of the two preceding ones, starting from 0 and 1.
    """
    if num1 == 0:
        return 0
    elif num1 == 1:
        return 1
    else:
        return fibonacci(num1 - 1) + fibonacci(num1 - 2)

print(fibonacci(10))
```

```
Output:
55
```

### Find an average of a tuple

```python theme={"system"}
def average(*args):
    """
    Average is the sum of all numbers divided by the number of numbers.
    """
    return sum(args) / len(args)

print(average(1, 2, 3, 4, 5, 9))
```

```
Output:
4.0
```

### Find an average of a dictionary

```python theme={"system"}
def average_dict(**kwargs):
    """
    Average is the sum of all numbers divided by the number of numbers.
    """
    return sum(kwargs.values()) / len(kwargs)

print(average_dict(a=1, b=2, c=3, d=4, e=5))
```

```
Output:
3.0
```

### Count vowels in a string

```python theme={"system"}
def count_vowels(str1):
    """
    Vowels are the letters a, e, i, o, and u.
    """
    vowels = "aeiouAEIOU"
    count = sum(1 for char in str1 if char in vowels)

    return count

print(count_vowels("programming"))
```

```
Output:
3
```

### Find a minimum value in a list

```python theme={"system"}
def find_min(list1):
    """
    Minimum is the smallest number in a list.
    """
    return min(list1)

print(find_min([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]))
```

```
Output:
1
```

### Find a maximum value in a list

```python theme={"system"}
def find_max(list1):
    """
    Maximum is the largest number in a list.
    """
    return max(list1)

print(find_max([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]))
```

```
Output:
10
```

### Find a sum of a list

```python theme={"system"}
def sum_list(list1):
    """
    Sum is the sum of all numbers in a list.
    """
    return sum(list1)

print(sum_list([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]))
```

```
Output:
55
```

### Convert an integer to a decimal

```python theme={"system"}
def convert_to_decimal(num1):
    return float(num1)

print(convert_to_decimal(10))
```

```
Output:
10.0
<class 'float'>
```

### Check if a number is even or odd

```python theme={"system"}
def is_even(num1):
    """
    Even is a number that is divisible by 2.
    """
    if num1 % 2 == 0:
        return "The number is even"
    else:
        return "The number is odd"

print(is_even(10))
```

```
Output:
The number is even
```

### Check if a number is positive or negative or zero

```python theme={"system"}
def is_positive(num1):
    """
    Positive is a number that is greater than 0.
    """
    if num1 > 0:
        return "The number is positive"
    elif num1 < 0:
        return "The number is negative"
    else:
        return "The number is zero"

print(is_positive(10))
```

```
Output:
The number is positive
```

### anagram of a string

```python theme={"system"}
def is_anagram(str1, str2):
    """
    Anagram is a string that has the same letters in a different order.
    """
    return sorted(str1.lower()) == sorted(str2.lower())

print(is_anagram("listen", "silent"))
print(is_anagram("Grow", "Word"))
```

```
Output:
True
False
```