Hi, I am stumped...
I am trying to get the following output until a certain condition is met.
test_1.jpg
test_2.jpg
..
test_50.jpg
The solution (if you could remotely call it that) that I have is
fileCount = 0
while (os.path.exists(dstPath)):
fileCount += 1
parts = os.path.splitext(dstPath)
dstPath = "%s_%d%s" % (parts[0], fileCount, parts[1])
however...this produces the following output.
test_1.jpg
test_1_2.jpg
test_1_2_3.jpg
.....etc
The Question: How do I get change the number in its current place (without appending numbers to the end)?
Ps. I'm using this for a file renaming tool.
I know this title look familiar to some old questions, but i've looked at every single one of them, none of them solves.
And here is my codes:
class Island (object):E,W,R,P
def __init__(self, x, y):
self.init_animals(y)
def init_animals(y):
pass
isle = Island(x,y)
However, i got the following error:
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "<stdin>", line 3, in __init__
TypeError: init_animals() takes 1 positional arguments but 2 were given
Please tell me if i got any mistakes, im so confused by this.
Best regards
This is a module named XYZ.
def func(x)
.....
.....
if __name__=="__main__":
print func(sys.argv[1])
Now I have imported this module in another code and want to use the func. How can i use it?
import XYZ
After this, where to give the argument, and syntax on how to call it, please?
Write an iterative program that finds the largest number of McNuggets that cannot be bought in exact quantity. Your program should print the answer in the following format (where the correct number is provided in place of n):
"Largest number of McNuggets that cannot be bought in exact quantity: n"
MYMESSAGE = "<div>Hello</div><p></p>Hello"
send_mail("testing",MYMESSAGE,"[email protected]",['[email protected]'],fail_silently=False)
However, this message doesn't get the HTML mime type when it is sent. In my outlook, I see the code...
i am raising exception using
if UserId == '' and Password == '':
raise Exception.MyException , "wrong userId or password"
but i want print the error message on same page
class MyException(Exception):
def __init__(self,msg):
Exception.__init__(self,msg)
Hi,
I want to store a number of url patterns in my django model which a user can provide parameters to which will create a url.
For example I might store these 3 urls in my db where %s is the variable parameter provided by the user:
www.thisissomewebsite.com?param=%s
www.anotherurl/%s/
www.lastexample.co.uk?param1=%s&fixedparam=2
As you can see from these examples the parameter can appear anywhere in the string and not in a fixed position.
I have 2 models, one holds the urls and one holds the variables:
class URLPatterns(models.Model):
pattern = models.CharField(max_length=255)
class URLVariables(models.Model):
pattern = models.ForeignKey(URLPatterns)
param = models.CharField(max_length=255)
What would be the best way to generate these urls by replacing the %s with the variable in the database.
would it just be a simple replace on the string e.g:
urlvariable = URLVariable.objects.get(pk=1)
pattern = url.pattern
url = pattern.replace("%s", urlvariable.param)
or is there a better way?
Thanks
I am working on large numpy arrays, and some native numpy operations are too slow for my needs (for example simple operations such as "bitwise" A&B).
I started looking into writing C extensions to try and improve performance. As a test case, I tried the example given here, implementing a simple trace calculation. I was able to get it to work, but was surprised by the performance: for a (1000,1000) numpy array, numpy.trace() was about 1000 times faster than the C extension!
This happens whether I run it once or many times. Is this expected? Is the C extension overhead that bad? Any ideas how to speed things up?
I am trying some simple c API, where I am using PyCapsule_New to encapsulate a pointer. I am running into segment violation, can some body help me.
mystruct *func1(int streamno, char mode,unsigned int options)
{
char * s;
s=malloc(100);
return s;
}
PyObject *Wrapper_func1(PyObject *self, PyObject *args)
{
int streamno;
char mode;
unsigned int options;
mystruct* result;
if (!PyArg_ParseTuple(args,"icI",&streamno,&mode,&options))
return NULL;
result = func1(streamno,mode,options);
return PyCapsule_New( result,NULL,NULL);
}
I am the create_user() function that Django provides to create my users. Also I want to store additional information about the users. So I tried following the instructions given at
http://docs.djangoproject.com/en/dev/topics/auth/#storing-additional-information-about-users
but I cannot get it to work for me. Is there a step-by-step guide that I can follow to get this to work for me?
Also, once I have added these custom fields, I would obviously need to add / edit / delete data from them. I cannot seem to find any instructions on how to do this.
I have written the following script. It opens a file, reads each line from it splitting by new line character and deleting first character in line. If line exists it's being added to array. Next each element of array is splitted by whitespace, sorted alphabetically and joined again. Every line is printed because script is fired from console and writes everything to file using standard output. I'd like to optimize this code to be more pythonic. Any ideas ?
import sys
def main():
filename = sys.argv[1]
file = open(filename)
arr = []
for line in file:
line = line[1:].replace("\n", "")
if line:
arr.append(line)
for line in arr:
lines = line.split(" ")
lines.sort(key=str.lower)
line = ''.join(lines)
print line
if __name__ == '__main__':
main()
The title says it all. The objective is to have two simple ways to source some code, say func.R, containing a function. Calling R CMD BATCH func.R initializes the function and evaluates is. Within a session, issuing source("func.R") simply initializes the function.
Any idea?
Hello,
I'm making a toolbar using wxpython and I want to put the Quit button on the right side of it, I don't want to put them sequencially.
Is it possible to define this position?
Thanks in advance!
Hey,
I'm running a function which evaluates commands passed in using stdin and another function which runs a bunch of jobs. I need to make the latter function sleep at regular intervals but that seems to be blocking the stdin. Any advice on how to resolve this would be appreciated.
The source code for the functions is
def runJobs(comps, jobQueue, numRunning, limit, lock):
while len(jobQueue) >= 0:
print(len(jobQueue));
if len(jobQueue) > 0:
comp, tasks = find_computer(comps, 0);
#do something
time.sleep(5);
def manageStdin():
print "Global Stdin Begins Now"
for line in fileinput.input():
try:
print(eval(line));
except Exception, e:
print e;
--Thanks
On example, i have 2 apps: alpha and beta
in alpha/models.py import of model from beta.models
and in beta/models.py import of model from alpha.models
manage.py validate says that ImportError: cannot import name ModelName
how to solve this problem?
A minimal example:
class MainWindow(QtGui.QMainWindow):
def __init__(self, parent = None):
QtGui.QMainWindow.__init__(self, parent)
winWidth = 683
winHeight = 784
screen = QtGui.QDesktopWidget().availableGeometry()
screenCenterX = (screen.width() - winWidth) / 2
screenCenterY = (screen.height() - winHeight) / 2
self.setGeometry(screenCenterX, screenCenterY, winWidth, winHeight)
layout = QtGui.QVBoxLayout()
layout.addWidget(FormA())
mainWidget = QtGui.QWidget()
mainWidget.setLayout(layout)
self.setCentralWidget(mainWidget)
FormA is a QFrame with a VBoxLayout that can expand to an arbitrary number of entries.
In the code posted above, if the entries in the forms can't fit in the window then the window itself grows. I'd prefer for the window to become scrollable. I've also tried the following...
replacing
mainWidget = QtGui.QWidget()
mainWidget.setLayout(layout)
self.setCentralWidget(mainWidget)
with
mainWidget = QtGui.QScrollArea()
mainWidget.setLayout(layout)
self.setCentralWidget(mainWidget)
results in the forms and entries shrinking if they can't fit in the window.
Replacing it with
mainWidget = QtGui.QWidget()
mainWidget.setLayout(layout)
scrollWidget = QtGui.QScrollArea()
scrollWidget.setWidget(mainWidget)
self.setCentralWidget(scrollWidget)
results in the mainwidget (composed of the forms) being scrunched in the top left corner of the window, leaving large blank areas on the right and bottom of it, and still isn't scrollable.
I can't set a limit on the size of the window because I wish for it to be resizable.
How can I make this window scrollable?
I've a model called broadcastinfo, It has fields viz.. info,userid...userid is excluded. when i add an new info, my broadcastinfo table should get the records of all userid from user table and the given message. Im trying this via signal.Any idea is highly appreciated.
Thanks
hi people, i wanna make change in css class every 3 loop. In the first three i want to use the CSS class A, in the next three i want to use the CSS class B, in the next three i want to use the CSS class A again and so on.
can anyone help? Thanks
Hello, I am trying to use RE to match a changing ID and extract it. I am having some bother getting it working. The String is:
m = 'Some Text That exists version 1.0.41.476 Fri Jun 4 16:50:56 EDT 2010'
The code I have tried so far is:
r = re.compile(r'(s*\s*)(\S+)')
m = m.match(r)
Can anyone help extract this string.
Thanks
How to identify which server side script language was used with a web site?
Asp.Net? PHP? RoR? Java? or other?
For example, Which server side script language was used with stackoverflow.com?
If I have an entity derived from db.Expando I can write Dynamic property by just assigning a value to a new property, e.g. "y" in this example:
class MyEntity(db.Expando):
x = db.IntegerProperty()
my_entity = MyEntity(x=1)
my_entity.y = 2
But suppose I have the name of the dynamic property in a variable... how can I (1) read and write to it, and (2) check if the Dynamic variable exists in the entity's instance? e.g.
class MyEntity(db.Expando):
x = db.IntegerProperty()
my_entity = MyEntity(x=1)
# choose a var name:
var_name = "z"
# assign a value to the Dynamic variable whose name is in var_name:
my_entity.property_by_name[var_name] = 2
# also, check if such a property esists
if my_entity.property_exists(var_name):
# read the value of the Dynamic property whose name is in var_name
print my_entity.property_by_name[var_name]
Thanks...
I have a table with an 'expires' datetime column. I want to find all the items that have an 'expires' date earlier than now.
I've tried
session.query(Item).filter(Item.expires < now())
but it doesn't return anything regardless of the dates in the table.
I'm using PostgreSQL 8.4.
How do I do this comparison?
I happened to find myself having a basic filtering need: I have a list and I have to filter it by an attribute of the items.
My code looked like this:
list = [i for i in list if i.attribute == value]
But then i thought, wouldn't it be better to write it like this?
filter(lambda x: x.attribute == value, list)
It's more readable, and if needed for performance the lambda could be taken out to gain something.
Question is: are there any caveats in using the second way? Any performance difference? Am I missing the Pythonic Way™ entirely and should do it in yet another way (such as using itemgetter instead of the lambda)?
Thanks in advance