CODEWITHSUNDEEP
pythonlistif-statement
Subhan Akhtar
Subhan Akhtar

Reputation: 23

How to access conditional items in dictionary that is in a list

empty_list=[]
employee = [{
    "name" : "Nauman",
    "age" : 27,
    "Salary": 29000
},
    {
        "name": "Bilal",
        "age": 26,
        "Salary": 27000
    },
    {
        "name": "Ali",
        "age": 19,
        "Salary": 22000
    },
    {
        "name": "Usman",
        "age": 28,
        "Salary": 34000
    },
    {
        "name": "Usama",
        "age": 14,
        "Salary": 24000
    }
]

def function(employee):
    for value in employee:
        if employee.my_dict(["age"])>25 and employee.my_dict(["salary"])>25000:
            empty_list.append(employee)
print(empty_list)

Upvotes: 1

Views: 66

Answers (2)

Dmitriy Solar
Dmitriy Solar

Reputation: 31

This helps:

def function(employee):
    for value in employee:
        if value["age"] > 25 and value["Salary"] > 25000:
            empty_list.append(value)

function(employee)

But better do it with return:

def function(listof:list)->list:
    empty_list = []
    for value in listof:
        if value["age"] > 25 and value["Salary"] > 25000:
            empty_list.append(value)
    return empty_list

print(function(employee))

As per a comment from toppk, this can be consolidate into a list comprehension:

result = [employee for employees in employees if employee.get('age',0) >25 and employee.get('Salary',0) > 25000]

Upvotes: 3

Prins
Prins

Reputation: 1051

You can correct and improve your code as follows:

  1. Pass your data as an argument to your function rather than trying to access the global variable directly.
  2. Access each employee from your list of employees and then use the relevant keys to access the desired data e.g. employee['age']
  3. Your function can return the result containing the employees that meet the specified conditions. This then allows you to invoke the function as and when desired.

Here is an example solution that follows the above corrections/recommendations:

data = [
    {
        "name" : "Nauman",
        "age" : 27,
        "salary": 29000
    },
    {
        "name": "Bilal",
        "age": 26,
        "salary": 27000
    },
    {
        "name": "Ali",
        "age": 19,
        "salary": 22000
    },
    {
        "name": "Usman",
        "age": 28,
        "salary": 34000
    },
    {
        "name": "Usama",
        "age": 14,
        "salary": 24000
    }]


def retrieve_desired_employees(employees):
    result = []
    for employee in employees:
        if employee['age'] > 25 and employee['salary'] > 25000:
            result.append(employee)
    return result

print(retrieve_desired_employees(data))

If the keys age and salary are not guaranteed to be in the dictionaries then you can use the dictionary's get method to supply a default value.

Here is a modified example:

def retrieve_desired_employees(employees):
    result = []
    for employee in employees:
        if employee.get('age', 0) > 25 and employee.get('salary', 0) > 25000:
            result.append(employee)
    return result

Upvotes: 3

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