;

# Python Program to Count the Positive and Negative Numbers in a Given List

###### Tutorialsrack 02/05/2020 Python

In this python program, we will learn how to count the positive and negative numbers on a given list.

Here is the source code of the program to count the positive and negative numbers in a given list.

### Program 1: Python Program to Count the Positive and Negative Numbers in a List Using For Loop

##### Python Program to Count the Positive and Negative Numbers in a List Using For Loop
``````# Python Program to Count the Positive and Negative Numbers in a List Using For Loop

NumList = []
Positive_count = 0
Negative_count = 0

# Take the Input From the User
Number = int(input("Enter the Total Number of List Elements: "))
for i in range(1, Number + 1):
value = int(input("Enter the Value of %d Element: " %i))
NumList.append(value)

# Print the List Entered by the User
print("\nList Entered By the User: ",NumList)

for j in range(Number):
if(NumList[j] >= 0):
Positive_count = Positive_count + 1
else:
Negative_count = Negative_count + 1

print("\nTotal Number of Positive Numbers in this List =  ", Positive_count)
print("Total Number of Negative Numbers in this List = ", Negative_count)
``````
##### Output

Enter the Total Number of List Elements: 6

Enter the Value of 1 Element: 12

Enter the Value of 2 Element: 63

Enter the Value of 3 Element: -65

Enter the Value of 4 Element: -56

Enter the Value of 5 Element: 32

Enter the Value of 6 Element: -54

List Entered By the User:  [12, 63, -65, -56, 32, -54]

Total Number of Positive Numbers in this List =   3

Total Number of Negative Numbers in this List =  3

### Program 2: Python Program to Count the Positive and Negative Numbers in a List Using While Loop

##### Python Program to Count the Positive and Negative Numbers in a List Using While Loop
``````# Python Program to Count the Positive and Negative Numbers in a List Using While Loop

NumList = []
Positive_count = 0
Negative_count = 0
j = 0

# Take the Input From the User
Number = int(input("Enter the Total Number of List Elements: "))
for i in range(1, Number + 1):
value = int(input("Enter the Value of %d Element: " %i))
NumList.append(value)

# Print the List Entered by the User
print("\nList Entered By the User: ",NumList)

while(j < Number):
if(NumList[j] >= 0):
Positive_count = Positive_count + 1
else:
Negative_count = Negative_count + 1
j = j + 1

print("\nTotal Number of Positive Numbers in this List = ", Positive_count)
print("Total Number of Negative Numbers in this List = ", Negative_count)
``````
##### Output

Enter the Total Number of List Elements: 8

Enter the Value of 1 Element: 785

Enter the Value of 2 Element: -78

Enter the Value of 3 Element: -654

Enter the Value of 4 Element: -5236

Enter the Value of 5 Element: 65

Enter the Value of 6 Element: 56

Enter the Value of 7 Element: -85

Enter the Value of 8 Element: 65

List Entered By the User:  [785, -78, -654, -5236, 65, 56, -85, 65]

Total Number of Positive Numbers in this List =  4

Total Number of Negative Numbers in this List =  4

### Program 3: Python Program to Count the Positive and Negative Numbers in a List By Defining Function

##### Python Program to Count the Positive and Negative Numbers in a List By Defining Function
``````# Python Program to Count the Positive and Negative Numbers in a List By Defining Function

# Define a Function
def count_Positive(NumList):
Positive_count = 0
for j in range(Number):
if(NumList[j] >= 0):
Positive_count = Positive_count + 1
return Positive_count

# Define a Function
def count_Negative(NumList):
Negative_count = 0
for j in range(Number):
if(NumList[j] <= 0):
Negative_count = Negative_count + 1
return Negative_count

NumList = []
Number = int(input("Enter the Total Number of List Elements: "))
for i in range(1, Number + 1):
value = int(input("Enter the Value of %d Element: " %i))
NumList.append(value)

# Print the List Entered by the User
print("\nList Entered By the User: ",NumList)

Positive_count = count_Positive(NumList)
Negative_count = count_Negative(NumList)
print("\nTotal Number of Positive Numbers in this List =  ", Positive_count)
print("Total Number of Negative Numbers in this List = ", Negative_count)
``````
##### Output

Enter the Total Number of List Elements: 7

Enter the Value of 1 Element: -56

Enter the Value of 2 Element: 65

Enter the Value of 3 Element: 36

Enter the Value of 4 Element: -52

Enter the Value of 5 Element: -63

Enter the Value of 6 Element: 65

Enter the Value of 7 Element: 65

List Entered By the User:  [-56, 65, 36, -52, -63, 65, 65]

Total Number of Positive Numbers in this List =   4

Total Number of Negative Numbers in this List =  3