Gribouillis

> python -i tinyscrip.py I don't use komodo, but apparently you are typing in a python shell a command which should be typed in a terminal.

> What is cms detector? It seems that cms detector means [Compact Muon Solenoid](http://ireswww.in2p3.fr/ires/recherche/cms/stephanie/CMSdetectE.html).

You can't double the double quotes like this >>> r"<option value=""([a-zA-Z])"">[&#0-9; a-zA-Z()]</option>" # bad '<option value=([a-zA-Z])>[&#0-9; a-zA-Z()]</option>' >>> r'<option value="([a-zA-Z])">[&#0-9; a-zA-Z()]</option>' # good '<option value="([a-zA-Z])">[&#0-9; a-zA-Z()]</option>' Use [kodos](http://kodos.sourceforge.net/) to debug regexes. edit: in python, `r"foo""bar""baz"` is the same as `r"foo" + "bar" + "baz"`.

Perhaps you're taking the square root of a negative number ? Also your formulas are false. Why not introduce a variable [icode]delta = b * b - 4 * a * c[/icode] to clean up the code ?

Vegaseat wrote [this great example](http://www.daniweb.com/software-development/python/code/216484/wxpython-listbox-demo) 7 years ago, and it still works out of the (list) box !

It's not very useful. You could `del time` to remove the name time from the current namespace, but it would not *unimport* the module. The module is still in `sys.modules['time']`. You could `del sys.modules[module.__name__]`, but it would not *really* unimport it as other modules may keep a reference to the …

In python, a file opened for reading supports the 'iterable protocol', it means that it can behave like a sequence of items, each item being a line of the file. For example it could be transformed into a list of lines L = list(open('spam.txt')) It can also be used in …

I don't know how glade works, but I recently hand coded a GtkListStore, and I remember that the method treeview.add_column() must be called on each column that you want to see to correctly initialize the treeview. Can you check this in your code ? edit: sorry, it's append_column()

I found a simple way to load or reload a firefox tab from python which uses a firefox addon called 'remote control'. Using this add-on in a single firefox tab, your python program can change automatically the browser's page content. [See this snippet](http://www.daniweb.com/software-development/python/code/410101/load-reload-a-firefox-tab-from-python). There is also [this module](http://code.google.com/p/python-browsercontrol/) but I …

There is also numpy.loadtxt() to read the file import numpy with open("numfile.txt") as ifh: arr = numpy.loadtxt(ifh, usecols = (2, 3), dtype=float, delimiter=" , ", skiprows = 2) print arr """ my output --> [[ 2.00000000e+00 -1.00000000e-04] [ 2.00000000e+00 1.69973300e-01] [ 2.00000000e+00 3.36706700e-01] [ 2.00000000e+00 5.00040000e-01]] """ Use matplotlib to …

Perhaps you could upload the element using this function import pickle import zipfile def save(obj): s = pickle.dumps(obj, 0) with zipfile.ZipFile('spam.zip', 'w') as myzip: myzip.writestr("elt", s) save(element) then attach the file spam.zip to a post, so that we can read it and study the element. You must also tell us …

A script is a python program like ex1.py (actually a script is a program in some scripting language, like python, perl, sh, etc). [b]Google[/b] says that an octothorpe is the '#' symbol.

There are gui builders for wxpython, pyqt and pygtk, I suggest that you start with this list of tools http://wiki.python.org/moin/GuiProgramming . I read good reports about pythoncard for example. See here http://pythoncard.sourceforge.net/walkthrough2.html

In linux, you can clear the screen with def clear(): print("\x1B[2J") clear() This uses the ANSI escape sequences which work in a linux terminal. This may work in windows too if you import module colorama which implements ansi sequences for all OSes from colorama import init init() it will also …

Download and install module xlrd (`pip install xlrd`) and type xlrd in this forum's search box.

You could use a small web server like [bottle](http://bottlepy.org/docs/dev/#). The server side is almost trivial (define a function to serve [static files](http://bottlepy.org/docs/dev/tutorial.html#routing-static-files)), the client side is straightforward using module urllib. Your app could start/stop the server process and manage the content of the directory where it would store the static …

You must learn to read the python documentation. `getpass.getpass([prompt[stream]])` in the documentation's notations means that you can call getpass one of the following ways getpass.getpass() getpass.getpass(prompt) getpass.getpass(prompt, stream) prompt is a string, and stream is a file object.

You can try this too import os p = os.path.join('C:\', 'Users', 'spreston', 'Desktop', 'HeadFirst', 'Chapter 3')

You could first work with file A alone and create a dictionary having the structure { 1: { '123456':'england', '234564': 'brazil', '939311': 'germany', }, 2: { '213213':'italy', }, 500: { '74778': 'denmark', }, } then work with file B and this dictionary.

Here is a stronger code to read the number from user input. def findx(): # This function asks an integer from the user, it does not need a parameter. while True: # This means 'repeat indefinitely' (unless a break or return or raise statement is met) try: z = int(input("Enter: …

The road to writing "good programs" is paved with writing hundreds of not so good programs. The most important step is that your programs run :)

> What I do need in my database import file is the first part of the textfile containing the 'sort of' columns but is a bit distorted with spaces etc... Perhaps you could describe with words the precise way the lines are 'distorted'. If it can't be described precisely, it …

The standard library contains the method `getpass.getuser()` to get the user name, and there is also `os.path.expanduser('~')` to get the home folder. On my unix system, there is no `USERPROFILE` environment variable for example.

There is also my_string[:my_string.index('.') + 3] or "{0:.2f}".format(float(my_string)) but the program no longer illustrates the split() method.

In python 2, there is no difference between print "foo" print ("foo") because print is a statement and the expression `("foo")` has the same value as the expression `"foo"`. On the other hand the statements print "foo", "bar" print ("foo", "bar") are **not** equivalent because `("foo", "bar")` is a single …

Adding a call to select.select() with a timeout works for me import select import sys import termios class TimeoutError(Exception): pass TERMIOS = termios def getkey(): fd = sys.stdin.fileno() old = termios.tcgetattr(fd) new = termios.tcgetattr(fd) new[3] = new[3] & ~TERMIOS.ICANON & ~TERMIOS.ECHO new[6][TERMIOS.VMIN] = 1 new[6][TERMIOS.VTIME] = 0 termios.tcsetattr(fd, TERMIOS.TCSANOW, new) …

You can try something like this #!/usr/bin/env python # -*-coding: utf8-*- # Title: remcol.py # WARNING: UNTESTED import os class Error(Exception): pass def remove_column(srcdir, dstdir = None): if dstdir is None: dstdir = os.path.join(os.path.expanduser("~"), "columnremoved") if os.path.exists(dstdir): # this guarantees that this function won't overwrite anything on the disk raise …

Here is function to find punctuation "by hand", but I won't help you more because it's homework. [code=python] text = """In 1876 the then Duke of Marlborough was appointed Viceroy and brought his son, Lord Randolph Churchill, to reside at the Little Lodge as his Private Secretary. Lord Randolph was …

jlm699 how can you put the tag without triggering their action ?

You could also read the file and build a dict mapping pairs like `('Pedro', 'groceries')` to the total cost for Pedro in this category (the float 1.42). So the dictionary would look like { ('Pedro', 'groceries'): 1.42, ('Nitin', 'tobacco'): 15.0, ('Susie', 'groceries'): 10.25, ... }

The path in the error message > Error 277 for "open "A:Chrome DownloadsJhalla_Wallah_(Remix)_-_(MusicTub.Com).mp3 looks strange. You may have to use something like path = r"A:\Chrome Downloads\Jhalla_Wallah_(Remix)_-_(MusicTub.Com).mp3"

There is no return statement in function `fixcase()`, so that your variable `output` will always be `None`. Also have a look at the `capitalize()` string method.

Also have a look in standard module `cmd`, and also this [code snippet](http://www.daniweb.com/software-development/python/code/258640/enhanced-cmd-class-for-command-line-interpreters).

A circle with center (a,b) and radius r has the equation `(x-a)^2 +(y-b)^2=r^2`. If the horizontal line has the equation `y = c`, it means that the intersection points are given by `(x-a)^2 = r^2 - (c-b)^2` when this is non negative, so that x = a +/- sqrt(r**2 - …

Also '\t'.join(str(x) for x in mylist)

I don't understand why you open the logfile in read mode in the first case. You can try the following, which should create an error file with a traceback if the logfile does not open from datetime import datetime import os import traceback logfilename = os.path.join('C:\', 'Dir1', 'Sub One', 'Sub3', …

Also `len(word)` gives the number of letters in a word.

It's always been like this: if you evaluate a python expression in a namespace, the `__builtins__` dictionary is inserted in that namespace. For example In [3]: D = dict() In [4]: D.keys() Out[4]: [] In [5]: eval("1+2", D) Out[5]: 3 In [6]: D.keys() Out[6]: ['__builtins__'] I think it's done at …

When working whith large data files, it may be desirable to output a sequence of bytes by large chunks. This snippet defines a file adapter class to handle this transparently. Writing bytes to an ChunkedOutputFile will automatically write the underlying file object by fixed length chunks.

Yes, python is extremely permissive. Any function can call any other function in any module, including the module where it is defined.

The path `C:\Python27\Lib\site-packages\Obspy\Lib\site-packages\obspy.core-0.6.2-py2.7.egg` looks strange. Something like `C:\Python27\Lib\site-packages\obspy.core-0.6.2-py2.7.egg` would look more conventional. Did you install obspy with a windows installer ? If you don't want to change anything, you can try to add this path `C:\Python27\Lib\site-packages\Obspy\Lib\site-packages` to your PYTHONPATH environment variable.

I don't use SUSE linux, but can't you simply find a 'python-numpy' rpm package for your system ? Also did you check [this page](http://www.scipy.org/Installing_SciPy/Linux) ?

Here is a way [code=python] def createData2(): L = [line.strip() for line in open("data.txt")] L = [line for line in L if line] data2 = open("data2.txt", "w") data2.write(" ".join(L)) data2.close() if __name__ == "__main__": createData2() [/code]

In linux I used [pyinotify](https://github.com/seb-m/pyinotify) which works very well.

Use datetime module >>> from datetime import datetime, timedelta >>> fm = "%d-%b-%y" >>> delta = timedelta(days=14) >>> d = datetime.strptime("28-FEB-12", fm) >>> (d - delta).strftime(fm) '14-Feb-12'

Congratulations for moderatorship. Now, you're supposed to have all the solutions, so tell me, is there a way to display threads by last post first in the new system ? It was a very nice feature in the previous daniweb interface, please do something so that the administrative staff implement …

Notice that independently from the pythonic solution above, one can use imagemagick on the command line, it's a specialized tool to convert between image formats. Here is a working command once imagemagick is installed convert temp.png temp.bmp This command has many options to manipulate size, color, transparency, etc.

I tried to do it using itertools.groupby(), but hihe's method is faster. The reason is probably that groupby() needs an initial sort, while filling a dict doesn't. Here is the comparison #!/usr/bin/env python # -*-coding: utf8-*- # compare two implementations of creating a sorted index list data_list = ['the', 'house', …

This python 2 code snippet uses unicode chess symbols and box drawings symbols to display a chessboard in a terminal. With a terminal profile having a monospace font of size 20 or more, it looks quite usable to play chess.

You can also print chess symbols in the terminal, they are small, but it works >>> print u"\u2654\u2655\u2656\u2657\u2658\u2659\u265A\u265B\u265C\u265D\u265E\u265F" ♔♕♖♗♘♙♚♛♜♝♞♟ Together with the box drawings code points (unicode 2500 +), it should be possible to draw a nice looking chessboard in a terminal. Your os will probably let you choose your …