I'm new in python and I'm having some issues doing a simple thing.
I've an array (or list as it's said in pyton) like this:
list = [ 'NICE dog' , 'blue FLOWER' , 'GOOD cat' , 'YELLOW caw']
As you see each element of this array contains some words. These words is both lowercase and uppercase.
How I can delete from this array each lowercase words?
For example I'd like to have as result this list:
list = [ 'NICE' , 'FLOWER' , 'GOOD' , 'YELLOW']
This is a question I have wondered about for quite some time, yet I have never found a suitable solution. If I run a script and I come across, let's say an IndexError, python prints the line, location and quick description of the error and exits. Is it possible to automatically start pdb when an error is encountered? I am not against having an extra import statement at the top of the file, nor a few extra lines of code.
Does anybody know any module in Python that computes the best bipartite matching?
I have tried the following two:
munkres
hungarian
However, in my case, I have to deal with non-complete graph (i.e., there might not be an edge between two nodes), and therefore, there might not be a match if the node has no edge. The above two packages seem not to be able to deal with this.
Any advice?
In python if a string contains the following,
print valid_str
The output of this is
Record is positive in tone:
It emphasizes "what a child can do and his or her achievements, as opposed to what he or she cannot do," explains the It is useful for progress and achievements during office conferences
How to search for the pattern It is useful in the above string and if not found return something.
Thanks..
Well i'm learning Python cuz' i think is an awesome and powerful language like C++, perl or C# but is really really easy at same time. I'm using JetBrains' Pycharm and when i define a function it ask me to add a "Documentation String Stub" when i click yes it adds somethin like this:
"""
"""
so the full code of the function is something like this:
def otherFunction(h, w):
"""
"""
hello = h
world = w
full_word = h + ' ' + w
return full_word
I would like to know what these (""" """) symbols means, Thanks.
Ps.Data: Sorry for my bad english :D
I am trying really hard to make a sliding frame containing widgets in tkinter in python. There is this frame inside a big window with different widgets. And as soon as i click on the next button on that frame the frame should slowly slide towards the left and vanish ultimately. As soon as it vanishes, i want new frame with widgets to come sliding towards right.
What should i do?
Anticipating your suggestions and ideas.
Hi,
How can i print only certain words from a string in python ?
lets say i want to print only the 3rd word (which is a number) and the 10th one
while the text length may be different each time
mystring = "You have 15 new messages and the size is 32000"
thanks.
What's the best way to sanitise user input for a Python-based web application? Is there a single function to remove HTML characters and any other necessary characters combinations to ensure that an XSS or SQL injection attack isn't possible?
Im using python to access a MySQL database and im getting a unknown column in field due to quotes not being around the variable.
code below:
cur = x.cnx.cursor()
cur.execute('insert into tempPDBcode (PDBcode) values (%s);' % (s))
rows = cur.fetchall()
How do i manually insert double or single quotes around the value of s?
I've trying using str() and manually concatenating quotes around s but it still doesn't work.
The sql statement works fine iv double and triple check my sql query.
What is the shortest / most elegant way to implement the following Scala code with an abstract attribute in Python?
abstract class Controller {
val path: String
}
A subclass of Controller is enforced to define "path" by the Scala compiler. A subclass would look like this:
class MyController extends Controller {
override val path = "/home"
}
Hi
i am new to python
i am trying to extract the text between that has specific text file
----
data1
data1
data1
extractme
----
data2
data2
data2
----
data3
data3
extractme
----
and then dump it to text file so that
----
data1
data1
data1
extractme
---
data3
data3
extractme
---
thanks for the help
data1
data1
I need to change some characters that are not ASCII to '_'.
For example,
Tannh‰user - Tann_huser
If I use regular expression with Python, how can I do this?
Is there better way to do this not using RE?
Hi, I have an application that starts several threads using
gobject.timeout_add(delay, function)
Now in my function I want to test and set on some variable, e.g.
def function(self):
if flag == True:
flag = False
doSomething()
Now to make this threadsafe, I would have to lock the function using some mutex lock.
Is this possible with Gtk? Or can I use the Python Lock objects from threading?
I have a long-running python server and would like to be able to upgrade a service without restarting the server. What's the best way do do this?
if foo.py has changed:
unimport foo <-- how do I do this?
import foo
myfoo=foo.Foo()
I need a way to determine the space remaining on a disk volume using python on linux, Windows and OS X. I'm currently parsing the output of the various system calls (df, dir) to accomplish this - is there a better way?
I'm running OS X Leopard. I followed this site to install it. Trying to run any demo script, I now get "No module named opencv.cv", which is obviously stopping me from doing any programming. I am running python 2.5.1 (yes, I know it's kind of old).
Why would this be, and how can I solve it?
Thanks
Hi all
I am a newbie to the python. Can I unhash, or rather how can I unhash a value. I am using std hash() function. What I would like to do is to first hash a value send it somewhere and then unhash it as such:
#process X
hashedVal = hash(someVal)
#send n receive in process Y
someVal = unhash(hashedVal)
#for example print it
print someVal
Thx in advance
I'm running a python program. When it get's to these lines:
f = open("/dev/bus/usb/007/005", "r")
x = fcntl.ioctl(f.fileno(), 0x84005001, '\x00' * 256)
It fails saying:
IOError: [Errno 1] Operation not permitted
What could be causing this problem?
I have an unknown number of functions in my python script (well, it is known, but not constant) that start with site_...
I was wondering if there's a way to go through all of these functions in some main function that calls for them.
something like:
foreach function_that_has_site_ as coolfunc
if coolfunc(blabla,yada) == true:
return coolfunc(blabla,yada)
so it would go through them all until it gets something that's true.
thanks!
I want to break a Python string into its characters.
sequenceOfAlphabets = list( string.uppercase )
works.
However, why does not
sequenceOfAlphabets = re.split( '.', string.uppercase )
work?
All I get are empty, albeit expected count of elements
Hi there,
I feel like this is quite delicate,
I have various folders whith projects I would like to backup into a zip/tar file, but would like to avoid backing up files such as pyc files and temporary files.
I also have a Postgres db I need to backup.
Any tips for running this operation as a python script?
Also, would there be anyway to stop the process from hogging resources in the process?
Help would be very much appreciated.
I'm looking for a Python XMPP library that is able to reuse an already existing socket-like object (more specifically, a Bluetooth socket) for communicating, instead of connecting to a server.
Is there any nice library that can accomplish this?
hello.
What is the pythonic way to test if there is a tuple starting with another tuple in collection? actually, I am really after the index of match, but I can probably figure out from test example
for example:
c = ((0,1),(2,3))
# (0,) should match first element, (3,)should match no element
I should add my python is 2.4 and/or 2.5
thanks