bsddb

Store dictionary in database

由 这一生的挚爱 提交于 2019-12-24 18:06:12
问题 I create a Berkeley database, and operate with it using bsddb module. And I need to store there information in a style, like this: username = '....' notes = {'name_of_note1':{ 'password':'...', 'comments':'...', 'title':'...' } 'name_of_note2':{ #keys same as previous, but another values } } This is how I open database db = bsddb.btopen['data.db','c'] How do I do that ? 回答1: So, first, I guess you should open your database using parentheses: db = bsddb.btopen('data.db','c') Keep in mind that

Store dictionary in database

由 痴心易碎 提交于 2019-12-24 18:06:10
问题 I create a Berkeley database, and operate with it using bsddb module. And I need to store there information in a style, like this: username = '....' notes = {'name_of_note1':{ 'password':'...', 'comments':'...', 'title':'...' } 'name_of_note2':{ #keys same as previous, but another values } } This is how I open database db = bsddb.btopen['data.db','c'] How do I do that ? 回答1: So, first, I guess you should open your database using parentheses: db = bsddb.btopen('data.db','c') Keep in mind that

Expressing multiple columns in berkeley db in python?

由 你离开我真会死。 提交于 2019-12-17 22:01:39
问题 Say I have a simple table that contains username, firstname, lastname. How do I express this in berkeley Db? I'm currently using bsddb as the interface. Cheers. 回答1: You have to pick one "column" as the key (must be unique; I imagine that would be "username" in your case) -- the only way searches will ever possibly happen. The other columns can be made to be the single string value of that key by any way you like, from pickling to simple joining with a character that's guaranteed to never

How to give multiple values to a single key using a dictionary?

由 纵饮孤独 提交于 2019-12-17 20:28:22
问题 I have a html form which has Firstname , LastName , Age and Gender and a ADD button. I enter the data into the form and that gets into the Berkeelys db. What my code does is it prints only the last values. I want that it should show all the values related to particular key #!/usr/bin/python import bsddb import cgi form = cgi.FieldStorage() print "Content-type:text/html\n" Fname = form.getvalue('firstname', '') Lname = form.getvalue('lastname', '') Age = form.getvalue('age', 0) Gender = form

Use integer keys in Berkeley DB with python (using bsddb3)

由 戏子无情 提交于 2019-12-12 06:30:33
问题 I want to use BDB as a time-series data store, and planning to use the microseconds since epoch as the key values. I am using BTREE as the data store type. However, when I try to store integer keys, bsddb3 gives an error saying TypeError: Integer keys only allowed for Recno and Queue DB's . What is the best workaround? I can store them as strings, but that probably will make it unnecessarily slower. Given BDB itself can handle any kind of data, why is there a restriction? can I sorta hack the

How to Fix the Broken BSDDB Install in the Default Python Package on Mac OS X 10.5 Leopard?

由 为君一笑 提交于 2019-12-01 07:38:07
Do the following on the default Python install on Mac OS X 10.5 (Leopard) w/ Developer Tools: noel ~ : python Python 2.5.1 (r251:54863, Jan 13 2009, 10:26:13) [GCC 4.0.1 (Apple Inc. build 5465)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import bsddb Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/bsddb/__init__.py", line 51, in <module> import _bsddb ImportError: No module named _bsddb nice, huh? How do I fix this without giving up and installing

How to Fix the Broken BSDDB Install in the Default Python Package on Mac OS X 10.5 Leopard?

由 廉价感情. 提交于 2019-12-01 05:08:47
问题 Do the following on the default Python install on Mac OS X 10.5 (Leopard) w/ Developer Tools: noel ~ : python Python 2.5.1 (r251:54863, Jan 13 2009, 10:26:13) [GCC 4.0.1 (Apple Inc. build 5465)] on darwin Type "help", "copyright", "credits" or "license" for more information. >>> import bsddb Traceback (most recent call last): File "<stdin>", line 1, in <module> File "/System/Library/Frameworks/Python.framework/Versions/2.5/lib/python2.5/bsddb/__init__.py", line 51, in <module> import _bsddb

Expressing multiple columns in berkeley db in python?

由 怎甘沉沦 提交于 2019-11-28 14:33:10
Say I have a simple table that contains username, firstname, lastname. How do I express this in berkeley Db? I'm currently using bsddb as the interface. Cheers. You have to pick one "column" as the key (must be unique; I imagine that would be "username" in your case) -- the only way searches will ever possibly happen. The other columns can be made to be the single string value of that key by any way you like, from pickling to simple joining with a character that's guaranteed to never occur in any of the columns, such as `\0' for many kind of "readable text strings". If you need to be able to

How to give multiple values to a single key using a dictionary?

由 落爺英雄遲暮 提交于 2019-11-28 13:00:00
I have a html form which has Firstname , LastName , Age and Gender and a ADD button. I enter the data into the form and that gets into the Berkeelys db. What my code does is it prints only the last values. I want that it should show all the values related to particular key #!/usr/bin/python import bsddb import cgi form = cgi.FieldStorage() print "Content-type:text/html\n" Fname = form.getvalue('firstname', '') Lname = form.getvalue('lastname', '') Age = form.getvalue('age', 0) Gender = form.getvalue('gender', '') #print Fname, Lname, Age db = bsddb.hashopen("/home/neeraj/public_html/database
订阅 bsddb