Programming Forums > Script Programming > Python

SaturN · Sep 21st, 2007, 9:35 PM

Is there anyone that is able to convert this small php snippet

 fputs($sock,"\\status\\"); $gotfinal=False; $data="";
 socket_set_timeout($sock,0,200000);
 $starttime=Time();
 while(!($gotfinal==True||feof($sock))) {
  if(($buf=fgetc($sock))==FALSE) usleep(100);
  $data.=$buf;
  if(strpos($data,"final\\")!=False) $gotfinal=True;
  if((Time() - $starttime)>2) { 
    $gotfinal=True;
   }
 }
 fclose($sock);
 $chunks=split('[\]',$data);

to Python??
I've got

(Toggle Plain Text)

    global chunks
    s.send("\\status\\")
    final = False
    while(final != True):
        data = s.recv(1024)
        if (len(data) <= 0): sleep(1); data = data, s.recvfrom(1024)
        if(data.find("final\\") != False): final = True
    chunks = data.split('\\')

But as you'll notice tis is not really a good match !!

Thanks for anyone that is able to help!
It would be greatly appriciated!! :banana:

DaWei · Sep 21st, 2007, 10:01 PM

Yeah, I can convert it. Understand that there is difference between translation/transliteration and implementing a good solution. Despite your sig, "make life simple", I think you need to learn to adapt to the good life. Hanging on the sugar tit is not generally considered to qualify, pleasant and unchallenging as it might be.

Game_Ender · Sep 22nd, 2007, 12:09 AM

Yeah, that code is messy and the intent is hard to follow. Use proper indentation (how did you manage not to in python?) and please explain the point of the code.

It appears to send "status\" over a socket then receive data (with some odd timeouts and sleeps thrown in) until it gets back "final\". Then it splits it based on the "\" character.

This is as close as I got (untested).

 python Syntax (Toggle Plain Text) 
global chunks
 
# Request Status
s.send("\\status\\")
 
data = ''
 
while True:
    # Attempt to get new data
    new_data = s.recv(1024)
 
    # Drop out of the loop if we didn't get any new data
    if not new_data:
        break
 
    data += new_data
 
    # Check for termination string
    if data.find("final\\")
        break
 
s.close()
 
chunks = data.split('\\')
global chunks

# Request Status
s.send("\\status\\")

data = ''

while True:
    # Attempt to get new data
    new_data = s.recv(1024)
   
    # Drop out of the loop if we didn't get any new data
    if not new_data:
        break

    data += new_data

    # Check for termination string
    if data.find("final\\")
        break

s.close()

chunks = data.split('\\')

SaturN · Sep 22nd, 2007, 10:54 AM

Firstly the first code (PHP) Is not mine, but it is what I need for the code that I am writing in python, as for the indentation comment how that is relevant to it being poorly spaced on a forum I find irellevant within my code it works.

As for my sig, I can see sarcasm is wasted to your wise wit...
I came here asking for help not for a debate.

Your code that you have posted is pretty much a match to mine but thanks anyway..

The code should be simple to understand both in the PHP and Python.
It sends status to a socket, gets the data back from the socket, BUT I was hoping for a if no new data, wait and check again sort of thing, because at the moment some of the data that should be there is not! And from what I can interprit from the PHP if looks like if new data is not found it waits, then gets more, so maybe this is what my code was missing then split the data from the server in to chunks...

Sorry if it sounds like I am biting back at anyone in the above, but
"Hanging on the sugar tit is not generally considered to qualify" thought this was a 'Programming Forum' not a 'Lessons to Life Forum'....

(Toggle Plain Text)

def Update():
    global chunks
    s.send("\\status\\")
    final = False
    while(final != True):
        data = s.recv(1024)
        if(data.find("final\\") != False): final = True
    chunks = data.split('\\')

But I am unsure if this gets all the data from the server.
Cheers for anyone willing to help and not give bites...

Game_Ender · Sep 23rd, 2007, 12:41 AM

When I said indentation I was referring to the leaving of statements one line, no need to do so in python. It just increases the line noise to code ratio, which seemed high to my non-PHP trained eyes.

Quote:

Your code that you have posted is pretty much a match to mine but thanks anyway..

It is a corrected version of the code you posted. I did not run it but you appeared to be using "recvfrom" improperly and you are still overwriting the data you get from the server (data = s.recv(1024) throws out the previous received data). It will also give you an error when the socket returns None, as it does when it gets no data.

Here is a version of the code the implements the proper waiting semantics and is well commented.

 python Syntax (Toggle Plain Text) 
 
def Update(s):
    # Request Status
    s.send("\\status\\")
 
    # Buffer to hold incoming data
    data = ''
 
    start_time = time.time()
    while True:
        # Attempt to get new data
        new_data = s.recv(1024)
 
        # Handle no new data case
        if not new_data:
            # Drop out its been two seconds
            if (time.time() - start_time) > 2:
                break
            else:
                # Sleep 100 micro seconds
                time.sleep(0.0001)
 
        # Append new data to buffer
        data += new_data
 
        # Check for termination string
        if data.find("final\\")
            break
 
    s.close()
 
    return data.split('\\')
def Update(s):
    # Request Status
    s.send("\\status\\")

    # Buffer to hold incoming data
    data = ''

    start_time = time.time()
    while True:
        # Attempt to get new data
        new_data = s.recv(1024)
        
        # Handle no new data case
        if not new_data:
            # Drop out its been two seconds
            if (time.time() - start_time) > 2:
                break
            else:
                # Sleep 100 micro seconds
                time.sleep(0.0001)

        # Append new data to buffer
        data += new_data

        # Check for termination string
        if data.find("final\\")
            break

    s.close()

    return data.split('\\')

I don't think the odd waiting code is needed, the socket timeout is should be enough. If you set the timeout to be 2 seconds the socket will block for 2 seconds to wait for new data.

SaturN · Sep 23rd, 2007, 8:27 AM

That you very much!

free-zombie · Sep 26th, 2007, 4:06 PM

If you want to check whether any data can be read, the select module is what you're looking for.

Sep 21st, 2007, 9:35 PM	#1
SaturN Programmer Join Date: Apr 2005 Location: Uk Posts: 68 Rep Power: 4	PHP to Python? Is there anyone that is able to convert this small php snippet (Toggle Plain Text) fputs($sock,"\\status\\"); $gotfinal=False; $data=""; socket_set_timeout($sock,0,200000); $starttime=Time(); while(!($gotfinal==True\|\|feof($sock))) { if(($buf=fgetc($sock))==FALSE) usleep(100); $data.=$buf; if(strpos($data,"final\\")!=False) $gotfinal=True; if((Time() - $starttime)>2) { $gotfinal=True; } } fclose($sock); $chunks=split('[\]',$data); fputs($sock,"\\status\\"); $gotfinal=False; $data=""; socket_set_timeout($sock,0,200000); $starttime=Time(); while(!($gotfinal==True\|\|feof($sock))) { if(($buf=fgetc($sock))==FALSE) usleep(100); $data.=$buf; if(strpos($data,"final\\")!=False) $gotfinal=True; if((Time() - $starttime)>2) { $gotfinal=True; } } fclose($sock); $chunks=split('[\]',$data); to Python?? I've got (Toggle Plain Text) global chunks s.send("\\status\\") final = False while(final != True): data = s.recv(1024) if (len(data) <= 0): sleep(1); data = data, s.recvfrom(1024) if(data.find("final\\") != False): final = True chunks = data.split('\\') global chunks s.send("\\status\\") final = False while(final != True): data = s.recv(1024) if (len(data) <= 0): sleep(1); data = data, s.recvfrom(1024) if(data.find("final\\") != False): final = True chunks = data.split('\\') But as you'll notice tis is not really a good match !! Thanks for anyone that is able to help! It would be greatly appriciated!! :banana: __________________ (Toggle Plain Text) while me is alive: make(life,simple) while me is alive: make(life,simple)

Sep 21st, 2007, 10:01 PM	#2
DaWei Resident Grouch Join Date: Jun 2005 Posts: 6,453 Rep Power: 10	Yeah, I can convert it. Understand that there is difference between translation/transliteration and implementing a good solution. Despite your sig, "make life simple", I think you need to learn to adapt to the good life. Hanging on the sugar tit is not generally considered to qualify, pleasant and unchallenging as it might be. __________________ Abstraction doesn't make it impossible to write bad code; it makes it possible to write superior code. Contributor's Corner: Grumpy on C++ Exceptions DaWei on Pointers

Sep 22nd, 2007, 12:09 AM	#3
Game_Ender Professional Programmer Join Date: May 2006 Location: Maryland, USA Posts: 306 Rep Power: 3	Yeah, that code is messy and the intent is hard to follow. Use proper indentation (how did you manage not to in python?) and please explain the point of the code. It appears to send "status\" over a socket then receive data (with some odd timeouts and sleeps thrown in) until it gets back "final\". Then it splits it based on the "\" character. This is as close as I got (untested). python Syntax (Toggle Plain Text) global chunks # Request Status s.send("\\status\\") data = '' while True: # Attempt to get new data new_data = s.recv(1024) # Drop out of the loop if we didn't get any new data if not new_data: break data += new_data # Check for termination string if data.find("final\\") break s.close() chunks = data.split('\\') global chunks # Request Status s.send("\\status\\") data = '' while True: # Attempt to get new data new_data = s.recv(1024) # Drop out of the loop if we didn't get any new data if not new_data: break data += new_data # Check for termination string if data.find("final\\") break s.close() chunks = data.split('\\') __________________ Robotics @ Maryland AUV Team - Software Lead

Sep 22nd, 2007, 10:54 AM	#4
SaturN Programmer Join Date: Apr 2005 Location: Uk Posts: 68 Rep Power: 4	Firstly the first code (PHP) Is not mine, but it is what I need for the code that I am writing in python, as for the indentation comment how that is relevant to it being poorly spaced on a forum I find irellevant within my code it works. As for my sig, I can see sarcasm is wasted to your wise wit... I came here asking for help not for a debate. Your code that you have posted is pretty much a match to mine but thanks anyway.. The code should be simple to understand both in the PHP and Python. It sends status to a socket, gets the data back from the socket, BUT I was hoping for a if no new data, wait and check again sort of thing, because at the moment some of the data that should be there is not! And from what I can interprit from the PHP if looks like if new data is not found it waits, then gets more, so maybe this is what my code was missing then split the data from the server in to chunks... Sorry if it sounds like I am biting back at anyone in the above, but "Hanging on the sugar tit is not generally considered to qualify" thought this was a 'Programming Forum' not a 'Lessons to Life Forum'.... (Toggle Plain Text) def Update(): global chunks s.send("\\status\\") final = False while(final != True): data = s.recv(1024) if(data.find("final\\") != False): final = True chunks = data.split('\\') def Update(): global chunks s.send("\\status\\") final = False while(final != True): data = s.recv(1024) if(data.find("final\\") != False): final = True chunks = data.split('\\') But I am unsure if this gets all the data from the server. Cheers for anyone willing to help and not give bites... __________________ (Toggle Plain Text) while me is alive: make(life,simple) while me is alive: make(life,simple)

Sep 23rd, 2007, 8:27 AM	#6
SaturN Programmer Join Date: Apr 2005 Location: Uk Posts: 68 Rep Power: 4	That you very much! __________________ (Toggle Plain Text) while me is alive: make(life,simple) while me is alive: make(life,simple)

Sep 26th, 2007, 4:06 PM	#7
free-zombie Programmer Join Date: May 2006 Location: Bavaria, Germany Posts: 50 Rep Power: 0	If you want to check whether any data can be read, the select module is what you're looking for.

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Programming Forums > Script Programming > Python

PHP to Python?