Python Multi-threading and Concurrency: Creating and managing threads

Last update on April 24 2025 12:40:58 (UTC/GMT +8 hours)

1. Multiple Threads Creation

Write a Python program to create multiple threads and print their names.

Sample Solution:

Python Code

import threading
def print_thread_names():
    print("Current thread name:", threading.current_thread().name)
# Create multiple threads
threads = []
for i in range(7):
    thread = threading.Thread(target=print_thread_names)
    threads.append(thread)
    thread.start()

# Wait for all threads to complete
for thread in threads:
    thread.join()

Sample Output:

Current thread name: Thread-6
Current thread name: Thread-7
Current thread name: Thread-8
Current thread name: Thread-9
Current thread name: Thread-10
Current thread name: Thread-11
Current thread name: Thread-12

Explanation:

In the above exercise,

The "print_thread_names()" function is defined, which simply prints the current thread name using threading.current_thread().name.
We create a list of threads to store thread objects.
Using a loop, we create 7 threads and add them to the threads list. Each thread is assigned by the "print_thread_names()" function as the target.
We start each thread by calling its start method.
After starting all the threads, we use another loop to call the join method on each thread. Prior to exiting, the program waits for all threads to complete.

Flowchart:

For more Practice: Solve these Related Problems:

Write a Python program that creates 5 threads, each printing its own name and a unique ID, then waits for all threads to complete.
Write a Python script to spawn a user-specified number of threads, have each thread sleep for a random time, and print its name upon waking up.
Write a Python function that creates multiple threads to execute a dummy task and then prints each thread’s name along with its start time.
Write a Python program to create multiple threads that print their names in reverse order of their creation using thread synchronization.

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