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  • How to send EOF to stdin in paramiko?

    - by Alexandru
    I would like to execute some program through ssh and redirect its input from a file. The behaviour of the following code: channel.exec_command('cat') with open('mumu', 'r') as f: text = f.read() nbytes = 0 while nbytes < len(text): sent = channel.send(text[nbytes:]) if sent == 0: break nbytes += sent should be equivalent to (assuming public-key authentication): ssh user@host cat < mumu However the application hangs waiting for more input. I think this happens because the stdin stream is never closed. How do I do that?

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  • add/remove items in a list

    - by Jam
    I'm trying to create a player who can add and remove items from their inventory. I have everything working, I just have 1 small problem. Every time it prints the inventory, 'None' also appears. I've been messing with it to try and remove that, but no matter what I do, 'None' always appears in the program! I know I'm just missing something simple, but I can't figure it out for the life of me. class Player(object): def __init__(self, name, max_items, items): self.name=name self.max_items=max_items self.items=items def inventory(self): for item in self.items: print item def take(self, new_item): if len(self.items)<self.max_items: self.items.append(new_item) else: print "You can't carry any more items!" def drop(self, old_item): if old_item in self.items: self.items.remove(old_item) else: print "You don't have that item." def main(): player=Player("Jimmy", 5, ['sword', 'shield', 'ax']) print "Max items:", player.max_items print "Inventory:", player.inventory() choice=None while choice!="0": print \ """ Inventory Man 0 - Quit 1 - Add an item to inventory 2 - Remove an item from inventory """ choice=raw_input("Choice: ") print if choice=="0": print "Good-bye." elif choice=="1": new_item=raw_input("What item would you like to add to your inventory?") player.take(new_item) print "Inventory:", player.inventory() elif choice=="2": old_item=raw_input("What item would you like to remove from your inventory?") player.drop(old_item) print "Inventory:", player.inventory() else: print "\nSorry, but", choice, "isn't a valid choice." main() raw_input("Press enter to exit.")

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  • create app that has plugin which contains PyQt widget

    - by brian
    I'm writing an application that will use plugins. In the plugin I want to include a widget that allows the options for that plugin to be setup. The plugin will also include methods to operate on the data. What is is the best way to include a widget in a plugin? Below is pseudo code for what I've tried to do. My original plan was to make the options widget: class myOptionsWidget(QWidget): “”” create widget for plug in options “”” …. Next I planned on including the widget in my plugin: class myPlugin def __init__(self): self.optionWidget = myOptionsWidget() self.pluginNum = 1 …. def getOptionWidget(self): return(self.optionWidget) Then at the top level I'd do something like a = myPlugin() form = createForm(option=a.getOptionWidget()) … where createForm would create the form and include my plugin options widget. But when I try "a = myPlugin()" I get the error "QWidget: Must construct a QApplication before a QpaintDevice" so this method won't work. I know I would store the widget as a string and call eval on it but I'd rather not do that in case later on I want to convert the program to C++. What is the best way to write a plugin that includes a widget that has the options? Brian

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  • How to pass variables using Unittest suite

    - by chrissygormley
    Hello I have test's using unittest. I have a test suite and I am trying to pass variables through into each of the tests. The below code shows the test suite used. class suite(): def suite(self): #Function stores all the modules to be tested modules_to_test = ('testmodule1', 'testmodule2') alltests = unittest.TestSuite() for module in map(__import__, modules_to_test): alltests.addTest(unittest.findTestCases(module)) return alltests It calls tests, I would like to know how to pass variables into the tests from this class. An example test script is below: class TestThis(unittest.TestCase): def runTest(self): assertEqual('1', '1') class TestThisTestSuite(unittest.TestSuite): # Tests to be tested by test suite def makeTestThisTestSuite(): suite = unittest.TestSuite() suite.addTest("TestThis") return suite def suite(): return unittest.makeSuite(TestThis) if __name__ == '__main__': unittest.main() So from the class suite() I would like to enter in a value to change the value that is in assert value. Eg. assertEqual(self.value, '1'). I have tried sys.argv for unittest and it doesn't seem to work. Thanks for any help.

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  • Sans-serif math with latex in matplotlib

    - by Morgoth
    The following script: import matplotlib matplotlib.use('Agg') import matplotlib.pyplot as mpl mpl.rc('font', family='sans-serif') mpl.rc('text', usetex=True) fig = mpl.figure() ax = fig.add_subplot(1,1,1) ax.text(0.2,0.5,r"Math font: $451^\circ$") ax.text(0.2,0.7,r"Normal font (except for degree symbol): 451$^\circ$") fig.savefig('test.png') is an attempt to use a sans-serif font in matplotlib with LaTeX. The issue is that the math font is still a serif font (as indicated by the axis numbers, and as demonstrated by the labels in the center). Is there a way to set the math font to also be sans-serif?

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  • access django session from a decorator

    - by ed1t
    I have a decorator that I use for my views @valid_session from django.http import Http404 def valid_session(the_func): """ function to check if the user has a valid session """ def _decorated(*args, **kwargs): if ## check if username is in the request.session: raise Http404('not logged in.') else: return the_func(*args, **kwargs) return _decorated I would like to access my session in my decoartor. When user is logged in, I put the username in my session.

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  • How can I prompt for input using Selenium/Webdriver and use the result?

    - by Tempus
    I would like to allow for user input and make some decisions based on it. If I do this: driver.execute_script("prompt('Enter smth','smth')") I get a nice prompt, but I cannot use it's value. Is there any way of showing an input box to the user, and use the value typed there? EDIT: This is my script: from selenium.webdriver import Firefox if __name__ == "__main__": driver = Firefox() driver.execute_script("window.promptResponse=prompt('Enter smth','smth')") a = driver.execute_script("var win = this.browserbot.getUserWindow(); return win.promptResponse") print "got back %s" % a And this exits with the following exception: a = driver.execute_script("var win = this.browserbot.getUserWindow(); return win.promptResponse") File "c:\python26\lib\site-packages\selenium-2.12.1-py2.6.egg\selenium\webdriver\remote\webdriver.py", line 385, in ex ecute_script {'script': script, 'args':converted_args})['value'] File "c:\python26\lib\site-packages\selenium-2.12.1-py2.6.egg\selenium\webdriver\remote\webdriver.py", line 153, in ex ecute self.error_handler.check_response(response) File "c:\python26\lib\site-packages\selenium-2.12.1-py2.6.egg\selenium\webdriver\remote\errorhandler.py", line 110, in check_response if 'message' in value: TypeError: argument of type 'NoneType' is not iterable What am I not doing right?

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  • django: caching passwords for custom authentication

    - by gruszczy
    I am authenticating users in ldap, but this happens only once, when user is logging in. Afterwards I need to keep username and password, because before every ldap operation I need to make bind on ldap server before every operation. What is the safe way to cache this password (I can't store in the database or cookies) for as long as session persists.

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  • How to unit test django middleware?

    - by luc
    I've implemented a django middleware for getting pages from the database (something similar to the flatpage subframework) Unfortunately it seems that it is not possible to test it with the django testing framework. Any suggestion? Thanks in advance Update: maybe a mistake in my test but I can't get an object that should be returned by a middleware. I'll inverstigate more. Does anybody have unit-tested a middleware code?

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  • Optimizing code using PIL

    - by freakazo
    Firstly sorry for the long piece of code pasted below. This is my first time actually having to worry about performance of an application so I haven't really ever worried about performance. This piece of code pretty much searches for an image inside another image, it takes 30 seconds to run on my computer, converting the images to greyscale and other changes shaved of 15 seconds, I need another 15 shaved off. I did read a bunch of pages and looked at examples but I couldn't find the same problems in my code. So any help would be greatly appreciated. From the looks of it (cProfile) 25 seconds is spent within the Image module, and only 5 seconds in my code. from PIL import Image import os, ImageGrab, pdb, time, win32api, win32con import cProfile def GetImage(name): name = name + '.bmp' try: print(os.path.join(os.getcwd(),"Images",name)) image = Image.open(os.path.join(os.getcwd(),"Images",name)) except: print('error opening image;', name) return image def Find(name): image = GetImage(name) imagebbox = image.getbbox() screen = ImageGrab.grab() #screen = Image.open(os.path.join(os.getcwd(),"Images","Untitled.bmp")) YLimit = screen.getbbox()[3] - imagebbox[3] XLimit = screen.getbbox()[2] - imagebbox[2] image = image.convert("L") Screen = screen.convert("L") Screen.load() image.load() #print(XLimit, YLimit) Found = False image = image.getdata() for y in range(0,YLimit): for x in range(0,XLimit): BoxCoordinates = x, y, x+imagebbox[2], y+imagebbox[3] ScreenGrab = screen.crop(BoxCoordinates) ScreenGrab = ScreenGrab.getdata() if image == ScreenGrab: Found = True #print("woop") return x,y if Found == False: return "Not Found" cProfile.run('print(Find("Login"))')

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  • Connect to a running instance of Visual Studio 2003 using COM, build and read output

    - by codeape
    For Visual Studio 6.0, I can connect to a running instance like: o = GetActiveObject("MSDev.Application") What prog ID do I use for Visual Studio 2003? How do I execute a 'Build Solution' once I have the COM object that references the VS2003 instance? How do I get the string contents of the build output window after executing the build solution command? Yes, I am aware that I can build a solution from the command line. But in this case, I need to connect to a running instance of Visual Studio. EDIT: found and submitted an answer, see below.

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  • Getting "Comment post not allowed (400)" when using Django Comments

    - by kfordham281
    I'm going through a Django book and I seem to be stuck. The code base used in the book is .96 and I'm using 1.0 for my Django install. The portion I'm stuck at is related to Django comments (django.contrib.comments). When I submit my comments I get "Comment post not allowed (400) Why: Missing content_type or object_pk field". I've found the Django documentation to be a bit lacking in this area and I'm hoping to get some help. The comment box is displayed just fine, it's when I submit the comment that I get the above error (or security warning as it truly appears). My call to the comment form: {% render_comment_form for bookmarks.sharedbookmark shared_bookmark.id %} My form.html code: {% if user.is_authenticated %} <form action="/comments/post/" method="post"> <p><label>Post a comment:</label><br /> <textarea name="comment" rows="10" cols="60"></textarea></p> <input type="hidden" name="options" value="{{ options }}" /> <input type="hidden" name="target" value="{{ target }}" /> <input type="hidden" name="gonzo" value="{{ hash }}" /> <input type="submit" name="post" value="submit comment" /> </form> {% else %} <p>Please <a href="/login/">log in</a> to post comments.</p> {% endif %} Any help would be much appreciated. My view as requested: def bookmark_page(request, bookmark_id): shared_bookmark = get_object_or_404( SharedBookmark, id=bookmark_id ) variables = RequestContext(request, { 'shared_bookmark': shared_bookmark }) return render_to_response('bookmark_page.html', variables)

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  • Matplotlib canvas drawing

    - by Morgoth
    Let's say I define a few functions to do certain matplotlib actions, such as def dostuff(ax): ax.scatter([0.],[0.]) Now if I launch ipython, I can load these functions and start a new figure: In [1]: import matplotlib.pyplot as mpl In [2]: fig = mpl.figure() In [3]: ax = fig.add_subplot(1,1,1) In [4]: run functions # run the file with the above defined function If I now call dostuff, then the figure does not refresh: In [6]: dostuff(ax) I have to then explicitly run: In [7]: fig.canvas.draw() To get the canvas to draw. Now I can modify dostuff to be def dostuff(ax): ax.scatter([0.],[0.]) ax.get_figure().canvas.draw() This re-draws the canvas automatically. But now, say that I have the following code: def dostuff1(ax): ax.scatter([0.],[0.]) ax.get_figure().canvas.draw() def dostuff2(ax): ax.scatter([1.],[1.]) ax.get_figure().canvas.draw() def doboth(ax): dostuff1(ax) dostuff2(ax) ax.get_figure().canvas.draw() I can call each of these functions, and the canvas will be redrawn, but in the case of doboth(), it will get redrawn multiple times. My question is: how could I code this, such that the canvas.draw() only gets called once? In the above example it won't change much, but in more complex cases with tens of functions that can be called individually or grouped, the repeated drawing is much more obvious, and it would be nice to be able to avoid it. I thought of using decorators, but it doesn't look as though it would be simple. Any ideas?

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  • GQL how to select by UserProperty

    - by fmsf
    Hey I have this code but it doesn't work because it is expecting a string. How can I make it work? class Atable(BaseModel): owner = db.UserProperty() (...) --------- // -------------- query = "SELECT * FROM Atable WHERE owner=", users.get_current_user() results = db.GqlQuery(query) How can I fix that search? Thanks :) I've started with the appengine database yesterday so be gentle :)

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  • Skip sanitization for videos in html5lib

    - by pug
    I am using a wmd-editor in django, much like this one in which I am typing. I would like to allow the users to embed videos in it. For that I am using the Markdown video extension here. The problem is that I am also sanitizing user input using html5lib sanitization and it doesn't allow object tags which are required to embed the videos. One solution could be to check the input for urls of well-known video sites and skip the sanitization in those cases. Is there a better solution?

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  • Asynchronous daemon processing / ORM interaction with Django

    - by perrierism
    I'm looking for a way to do asynchronous data processing with a daemon that uses Django ORM. However, the ORM isn't thread-safe; it's not thread-safe to try to retrieve / modify django objects from within threads. So I'm wondering what the correct way to achieve asynchrony is? Basically what I need to accomplish is taking a list of users in the db, querying a third party api and then making updates to user-profile rows for those users. As a daemon or background process. Doing this in series per user is easy, but it takes too long to be at all scalable. If the daemon is retrieving and updating the users through the ORM, how do I achieve processing 10-20 users at a time? I would use a standard threading / queue system for this but you can't thread interactions like models.User.objects.get(id=foo) ... Django itself is an asynchronous processing system which makes asynchronous ORM calls(?) for each request, so there should be a way to do it? I haven't found anything in the documentation so far. Cheers

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  • Numpy ‘smart’ symmetric matrix

    - by Debilski
    Is there a smart and space-efficient symmetric matrix in numpy which automatically fills [j][i] when [i][j] is written to? a = numpy.symmetric((3, 3)) a[0][1] = 1 print a # [[0 1 0], [1 0 0], [0 0 0]] An automatic Hermitian would also be nice, although I won’t need that at the time of writing.

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  • class, dict, self, init, args ?

    - by kame
    class attrdict(dict): def __init__(self, *args, **kwargs): dict.__init__(self, *args, **kwargs) self.__dict__ = self a = attrdict(x=1, y=2) print a.x, a.y b = attrdict() b.x, b.y = 1, 2 print b.x, b.y Could somebody explain the first four lines in words? I read about classes and methods. But here it seems very confusing.

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  • Reading CSV files in numpy where delimiter is ","

    - by monch1962
    Hello all, I've got a CSV file with a format that looks like this: "FieldName1", "FieldName2", "FieldName3", "FieldName4" "04/13/2010 14:45:07.008", "7.59484916392", "10", "6.552373" "04/13/2010 14:45:22.010", "6.55478493312", "9", "3.5378543" ... Note that there are double quote characters at the start and end of each line in the CSV file, and the "," string is used to delimit fields within each line. When I try to read this into numpy via: import numpy as np data = np.genfromtxt(csvfile, dtype=None, delimiter=',', names=True) all the data gets read in as string values, surrounded by double-quote characters. Not unreasonable, but not much use to me as I then have to go back and convert every column to its correct type When I use delimiter='","' instead, everything works as I'd like, except for the 1st and last fields. As the start of line and end of line characters are a single double-quote character, this isn't seen as a valid delimiter for the 1st and last fields, so they get read in as e.g. "04/13/2010 14:45:07.008 and 6.552373" - note the leading and trailing double-quote characters respectively. Because of these redundant characters, numpy assumes the 1st and last fields are both String types; I don't want that to be the case Is there a way of instructing numpy to read in files formatted in this fashion as I'd like, without having to go back and "fix" the structure of the numpy array after the initial read?

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  • Django admin urls return INVALID REQUEST! - Django

    - by RadiantHex
    Hi folks, my admin urls are sat behind a prefix by doing the following. 1# (r'^admin/', include(admin.site.urls)), is placed within urls_core.py 2# (r'^api/', include('project.urls_core')), is palced within urls.py All admin URLs work fine except app indexes. If I go to any URL such as: /api/admin/core/ /api/admin/registration/ /api/admin/users/ /api/admin/filters/ I receive 'INVALID REQUEST' as my response. Status code is 200 (OK) though. I have never received this error message before. Does anyone have a clue? Thanks guys!

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  • Best practise when using httplib2.Http() object

    - by tomaz
    I'm writing a pythonic web API wrapper with a class like this import httplib2 import urllib class apiWrapper: def __init__(self): self.http = httplib2.Http() def _http(self, url, method, dict): ''' Im using this wrapper arround the http object all the time inside the class ''' params = urllib.urlencode(dict) response, content = self.http.request(url,params,method) as you can see I'm using the _http() method to simplify the interaction with the httplib2.Http() object. This method is called quite often inside the class and I'm wondering what's the best way to interact with this object: create the object in the __init__ and then reuse it when the _http() method is called (as shown in the code above) or create the httplib2.Http() object inside the method for every call of the _http() method (as shown in the code sample below) import httplib2 import urllib class apiWrapper: def __init__(self): def _http(self, url, method, dict): '''Im using this wrapper arround the http object all the time inside the class''' http = httplib2.Http() params = urllib.urlencode(dict) response, content = http.request(url,params,method)

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  • Source for Names to use in web scraping

    - by PyNEwbie
    Can anyone suggest a good source of names that I can use to help analyze some tables on web pages. The first column of the tables I am scraping have names alone, names and titles or just titles. The names can be as varied as John Smith to Vikram Saksena. I have been poking around for a compiled list of words that can be found in proper names.

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  • How to add legend to imshow() in matplotlib

    - by rankthefirst
    I am using matplotlib In plot() or bar(), we can easily put legend, if we add labels to them. but what if it is a contourf() or imshow() I know there is a colorbar() which can present the color range, but it is not satisfied. I want such a legend which have names(labels). For what I can think of is that, add labels to each element in the matrix, then ,try legend(), to see if it works, but how to add label to the element, like a value?? in my case, the raw data is like: 1,2,3,3,4 2,3,4,4,5 1,1,1,2,2 for example, 1 represents 'grass', 2 represents 'sand', 3 represents 'hill'... and so on. imshow() works perfectly with my case, but without the legend. my question is: Is there a function that can automatically add legend, for example, in my case, I just have to do like this: someFunction('grass','sand',...) If there isn't, how do I add labels to each value in the matrix. For example, label all the 1 in the matrix 'grass', labell all the 2 in the matrix 'sand'...and so on. Thank you!

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  • Is it possible for BeautifulSoup to work in a case-insensitive manner?

    - by Nitin
    I am trying to extract Meta Description for fetched webpages. But here I am facing the problem of case sensitivity of BeautifulSoup. As some of the pages have <meta name="Description and some have <meta name="description. My problem is very much similar to that of Question on Stackoverflow The only difference is that I can't use lxml .. I have to stick with Beautifulsoup.

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