python gis book

#! /Usr/bin/Python ''''' Compiler: Python 2.6 Filename: Tb. py Version: 1.00 @ 20081205 Author: t0nsha (Liaodunxia {at} gmail.com) Remark: Just a simple telephone book program For my one week Python study. ''' Import cpickle as P Tbdict = {} Tbdat = 'tb. dat' Class person: Def _ init _ (self, name, ph

=Logisticregressionwithlbfgs.train (parseddata)#evaluating the model on training data evaluates the error on the training setLabelsandpreds = Parseddata.map (LambdaP: (P.label, Model.predict (p.features))) Trainerr= Labelsandpreds.filter (LambdaLP:LP[0]! = lp[1]). COUNT ()/Float (parseddata.count ())Print("Training Error ="+ str (TRAINERR))#Training Error = 0.366459627329#Save and load model saving models and loading modelsModel.save (SC,"Pythonlogisticregressionwithlbfgsmodel") Samemodel= Logi

Searchsort=1geshi=1page='+Str (pagenum)Print '=============url'Url'===============' Try: Req= Urllib2.urlopen (URL, timeout = 10) except: Print 'page Time Out', url text=req.read () href=''Href_re=re.compile (href) href_info=href_re.findall (text) forIinchHref_info:PrintI[0], i[1] URL='http://www.kindle114.com/'+I[0] ThreadName= I[1] Try: Spiderthread (URL, threadname)exceptException, E:Print '!!!!!!!!!!!!! Error with', ThreadName, URL,'!!!!!!!!!!!!!!!!' PrintEraw

original table of the change.>>> x = [1,2,3,47,3,2,5]>>> X.sort ()>>> x[1, 2, 2, 3, 3, 5, 47]>>>The sort method is highlighted below: Because he modifies the original list of data, I want a sort that does not modify the original list, to a list copy, is sorted well. How does this happen:>>> x = [1,2,3,47,3,2,5]>>> y = x[:]>>> y[1, 2, 3, 47, 3, 2, 5]>>> x[1, 2, 3, 47, 3, 2, 5]>>> Y.sort ()>>> y[1, 2, 2, 3, 3, 5, 47]>>> x[1, 2, 3, 47, 3, 2, 5]>>>It's a bit heavy. Rest summarized under. Continue l

"debugger." A debugger is like doing a full-body scan on a sick person. YouDon't get any specific useful information, and you find a whole lot of information thatDoesn ' t help and is just confusing.2. The best-of-the-to-debug a program is-use print-to-print out the values of variables atPoints in the program to see where they go wrong.3. Make sure parts of the your programs work as your work on them. Do not write massive filesof code before you try to run them. Code a little, run a little, fix

The principle and the previous chapter to get the same, just a change of the content of the analysis.Code:#-*-coding:utf-8-*-import urllib2import redef getpagecontent (page_url,heads): Try:req = Urllib2. Request (page_url,headers=heads) resp = Urllib2.urlopen (req) return Resp.read (). Decode (' UTF8 ') except Exce Ption, E:print "Request [%s] error. "% (Page_url), E return" "Def gettopnotes (cont): Strre = '. *?Output:The secret 4820=== of C:\Python27\python.exe f:/srccode/

This article is an example of Python Computing book page number statistics problem, is a Python program design of a more typical application example. Share to everyone for your reference. Specifically as follows: Problem Description: For a given page number n, calculate how many digits are used in all page numbers 0,1,2,3,4...,9 The instance code is as follows:

#!/usr/bin/env python#coding=utf-8# Phone Book management, you can add, delete, modify, query user information import Cpickle as P class Telephone:def __init__ (self): "Construction Method" Def addpeople (Self,name,email,telephone): "" "Add User" "" Teledict = Self.getdictda Ta () if teledict:infolist = [Name,email,telephone] teledict[name] = infolist Self.writefile (teledict) else:teledict

1 #-*-coding:utf-8-*-2 __author__='Deen' 3 " "4 Title Description:5 Save the 200 activation codes (or coupons) generated by the 0001 questions to the MySQL relational database. 6 " "7 """8 import MySQLdb as MDB9 Ten config = { One ' host ': ' 127.0.0.1 ', A ' Port ': 3306, - ' user ': ' Root ', - ' passwd ': ', the ' db ': ' Student ', - ' charset ': ' UTF8 ' - } - conn = Mdb.connect (**config) + cursor = conn.cursor (cursorclass=mdb.cursors.dictcursor) - + A at cursor.execute (' Set names GB

memory - :p Aram S_strfile: - : return: - """ - #com = re.compile (' in #'. *? - #two rows and one line of effect to #com = re.compile ( + #' - #Re. S) the #above is to build the regular through method compile into an object * $ #try to get it all out by findall, but it takes up a lot of memory, so find the result store, plan to build a generator, take one at a timePanax Notoginseng #page = Com.findall (s_strfile) - #Print (page) the +ret = Patter

+ - defsplitaddress (address): theAddressparts = Address.replace ("/ http",""). Split ("/") * returnAddressparts $ Panax Notoginseng - defgetnextexternallink (param): the Pass + A the defGetrandomexternallink (startingpage): +HTML =Urlopen (startingpage) -Bsobj =BeautifulSoup (HTML) $Externallinks =getexternallinks (Bsobj, Splitaddress (Startingpage) [0]) $ ifLen (externallinks) = =0: -Internallinks =getinternallinks (startingpage) - returnGetnextexternallink (internalli

Jingdong Book review has a very rich information, which contains the date of purchase, the title, author, Praise, in the evaluation, the difference between the evaluation and so on. Take the purchase date as an example, using Python + MySQL with the implementation of the program is not large, only 100 lines. I have raised the relevant explanations in the program: From selenium import WebdriverFrom BS4 impo

) - returncontent - - defgetuserlist (self, userId, following): A Idcontainer.add ((userId, following)) +num = Int (following)/10 thepage =Math.ceil (num) - forPginchRange (1, page + 1, 1): $requ =Self.createrequest (UserId, PG) theUserList =self.pageresponse (requ) the forUserinchuserlist: theContent =self.parseruserinfo (user) theLinkdeque.append (Content[0], content[2])) -Time.sleep (1) in forDeqinchLinkdeque: the ifDeq not inchIdcontain

(width)] ' for ' in range (1, width-1): rows[0][x] = HO Rizontal Rows[height-1][x] = Horizontal for y in range (1, height-1): rows[y][0] = VERTICAL row S[Y][WIDTH-1] = VERTICAL for y, X in ((0, 0), (0, Width-1), (height-1, 0), (height-1, width-1)): ROWS[Y][X] = CORNER return rowsclass rectangle:def __init__ (self, x, y, width, height, fill, stroke): s elf.x = x self.y = y Self.rows = _create_rectangle (width, height, BLANK if fill = = "White" El Se "%") class Text:def __init__ (self, x,

Tags: als Note Selection View python cep def Pytho CTIFirst of all, put the code here, and then have time to explain the problems in the program,This small program knowledge to implement the function, and there is not much to the layout of the pursuit ofSome comments are not deleted, and there is no function to wrap up, looking at the wholeIt should be a little messy.The following is the complete code,ImportTkinterImportPymysql fromTkinterImport* from

learning Python /td> This article is from the "Operation and maintenance Automation" blog, please make sure to keep this source http://shower.blog.51cto.com/4926872/1974070A beginner's book on Python Learning

arrows as shown there, then go to the page where you want to locate the element, for example we now want to locate the input account box, we will click on the view element of the icon, and then click on the Input Account box, you can see the view element of the page is located here:Here, the page element property has ID, name, and so on, which is where we can locate this box by ID (find_element_by_id) or name (Find_element_by_name), generally name or class_name,tag_ Name these element names are

() Self.book_dict[str (Self.count)]= {'Serial Number': Self.count,'title': Book_name,'Ratings': Grade,'Number of comments': Comment_count,'author': Author}Else: return #Execution Crawler defDo_spider (self): forIinchSelf.get_url (): Self.main_spider (i)#data written to Excel defWrite_excel (self): WB= XLWT. Workbook (encoding='ASCII') WS= Wb.add_sheet (self.Book_type) style=XLWT. Xfstyle () Font=XLWT. Font () Font.Name='Times New Roman'Font.Bold=True Style.font=Font row0= ['