I want to send a datetime.datetime object in serialized form from Python using JSON and de-serialize in JavaScript using JSON. What is the best way to do this?
Hi! I am interested in saving and load objects using the pickle module as you can read in a question I asked before:
Python: Errors saving and loading objects with pickle module
Someone commment:
1, In an other way: the error is raise because pickle wanted to load an instance of the class Fruits and search for the class definition where it was defined, but it didn't find it so it raise the error
Now I want to save and load a class definition in order to solve the problem I describe in the question mentioned before.
Thank you so much!
Suppose user enter this string at terminal
123 456 456 //then hit enter
How do I scan these three (could be more) numbers in different variables in python
Could be something like this:
for i in range(1,n)
m[i]=#WHAT FUNCTION SHOULD I PUT HERE
In c++ we can easily use cin>>m[i] inside above loop to scan the variables.
If i use input() or raw_input() , they would scan whole line in single variable.
Hi,
What is Python's equivalent of "public static void main(String[] args) { ... }"? I remember having used it in the past and then forgot.
What I'm basically trying to remember is a function which I think included some underscores (__)...
thx
for example you run some client program, this program communicate with server to recieve data in realtime ... how can i listen to this network traffic and filter / store data in python?
I have written a simple python module, it has this code:
_log = logging.getLogger("mymodule")
_started = False
def set_log_level(level):
_log.setLevel(level)
if not _started:
_hdlr = logging.FileHandler('mymodule.log')
When I call set_log_level() program fails because symbol _started is not found. It is normal because global _started is missing in the method. But my question is: symbol _log has the same visibility as _started, so why does this symbol can be found?
BR,
// Toby
Hi,
In Python if I have 2 lists say:
l1 = ['a', 'b', 'c', 'd']
l2 = ['c', 'd', 'e']
is there a way to find out how many elements they have the same. In the case about it would be 2 (c and d)
I know I could just do a nested loop but is there not a built in function like in php with the array_intersect function
Thanks
What are the differences between these built-in Python data types: list, sequence and slice? As I see it, all three essentially represent what C++ and Java call array.
Am surprised there's 3 different forms: RawConfigParser, SafeConfigParser and ConfigParser. I read the differences but why isn't everyone using SafeConfigParser, since it seems, well, safe? I can understand that in the case for Python 2 that the other two were kept for backward compatibility.
I have a Python app that contains an object structure that the user can manipulate. What I want to do is allow the user to create a file declaring how the object structure should be created.
For example, I would like the user to be able to create the following file:
foo.bar.baz = true
x.y.z = 12
and for my app to then create that object tree automatically. What's the best way to do something like this?
I am iterating over an array in python:
for g in [ games[0:4] ]:
g.output()
Can I also initialise and increment an index in that for loop and pass it to g.output()?
such that g.output(2) results in:
Game 2 - name: Fruit Splat, text: "Splat fruits!", bitrate: 250000
Is it possible for my python web app to provide an option the for user to automatically send jobs to the locally connected printer? Or will the user always have to use the browser to manually print out everything.
I have read about python sched (task schedular), it works like a cron.
but I have a question :
lets say if i schedule a function to ryn after every 2 hours and in the mean time my system gets shut down, then I again restart the system...did the schedular automatically starts and will run the function after 2 hours? or i have to start that again after shutting down the system?
did sched work like a deamon?
I'm trying to use python to determine if one (small) image is within another (large) image.
Any suggestions before I take myself completely down the wrong path?
How do you end up running pypcap for python 2.6 on a mac? It seems that there hasn't been any new releases since 2.5 or am I just looking in the wrong places?
Hello,
Is there a way to declare a string variable in python such that everything inside of it is automatically escaped, or has its literal character value? I'm NOT asking how to escape the quotes with slashes, that's obvious. What I'm asking for is a general purpose way for making EVERYTHING in a string literal so that I don't have to manually go through and escape everything for very large strings. Anyone know of a solution? Thanks!
I am using Python with PLY to parse LISP-like S-Expressions and when parsing a function call there can be zero or more arguments. How can I put this into the yacc code. This is my function so far:
def p_EXPR(p):
'''EXPR : NUMBER
| STRING
| LPAREN funcname [EXPR] RPAREN'''
if len(p) == 2:
p[0] = p[1]
else:
p[0] = ("Call", p[2], p[3:-1])
I need to replace "[EXPR]" with something that allows zero or more EXPR's. How can I do this?
I am writing a program in Python, and want to get it to make the OS open the current working directory, making for instance Windows open explorer.exe and navigating to the wanted directory. Any ideas on how to do this?
The directory is already given by os.getcwd.
Cross platform methods preferred :)
How can I parse text and find all instances of hyperlinks with a string? The hyperlink will not be in the html format of <a href="http://test.com">test</a> but just http://test.com
Secondly, I would like to then convert the original string and replace all instances of hyperlinks into clickable html hyperlinks.
I found an example in this thread:
Easiest way to convert a URL to a hyperlink in a C# string?
but was unable to reproduce it in python :(
Hey, here's a dumb question: how can I set an object property given its name in a string. I have a dictionary being passed to me and I wish to transfer its values into namesake properties using code like this:
for entry in src_dict:
if entry.startswith('can_'):
tgt_obj[entry] = src_dict_profile[entry]
I'm still a bit of a noob with Python so would appreciate some help.
- dave.
Since input and raw_input() stop the program from running anymore, I want to use a subprocess to run this program...
while True: print raw_input()
and get its output.
This is what I have as my reading program:
import subprocess
process = subprocess.Popen('python subinput.py', stdout=subprocess.PIPE, stderr=subprocess.PIPE)
while True:
output=process.stdout.read(12)
if output=='' and process.poll()!=None:
break
if output!='':
sys.stdout.write(output)
sys.stdout.flush()
When I run this, the subprocess exits almost as fast as it started. How can I fix this?
I've always laughed to myself when I looked back at my VB6 days, "What modern language doesn't allow incrementing with double plus signs?":
number++
To my surprise I can't find anything about this in the Python docs. Must I really subject myself to number = number + 1? Doesn't people use the ++/-- notation?
:-(
Hi, I'm developing C extensions from python ad I obtain some segfaults (inevitable during the development...).
I'm searching a way to display at which line of code the segfault happens (an idea is like tracing every single line of code), how I can do that?