CODEWITHSUNDEEP
python
chandank
chandank

Reputation: 1011

c style thread creation in python

Hi I am new to python and want to create multiple threads in a loop something like (in C style)

for (;i < 10; i++)
 thread[i]= pthread_create(&thread[i],&attr,func)

I am not sure how to do the same in python? Basically I want have that thread[] variable as global will create all thread at once and then will start then in once. I have written a similar python program that does it but I think having it in above style will be better.

def thread_create(thread_number):
    command_string = "Thread-" + "%d" %thread_number
    thread = myThread(thread_number, command_string)
    thread.start()

# Start new Threads

for i in range(5):
    thread_create(i)

Upvotes: 1

Views: 110

Answers (3)

jdi
jdi

Reputation: 92647

If you want a 1-to-1 equivalent, then this might be it:

threads = []
for i in xrange(10):
    t = Thread(target=aFunc, name="Thread-%d" % i)
    t.start()
    threads.append(t)

Or if you just want to build up the thread objects, and start them later at-will...

threads = []
for i in xrange(10):
    t = Thread(target=aFunc, name="Thread-%d" % i)
    threads.append(t)

threads[2].start()

Upvotes: 0

grieve
grieve

Reputation: 13518

Reuse your thread_create function and list comprehension to get what you want.

def thread_create(thread_number):
    command_string = "Thread-" + "%d" %thread_number
    return myThread(thread_number, command_string)
    # start them later


# see note below
threads = [thread_create(x) for x in range(5)]

for t in threads:
    t.start()

Note:

threads = [thread_create(x) for x in range(5)]

is just shorthand for

threads = []
for x in range(5):
    threads.append(thread_create(x))

Upvotes: 0

Hans Then
Hans Then

Reputation: 11322

You think this is better?

for i in range(5):
    command_string = "Thread-" + "%d" % i
    thread = Thread(i, command_string)
    thread.start()

Upvotes: 1

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