python - pandas.io.sql returnt that that table does not existst, even if it is existing -


this code, running on windows xp, inside ipython notebook.

import os os.getcwd() # current working directory   db_path = '..\\06_django\\hzmo_web\\hzmo_web\\hzmo_backup_05_2013.db'   import sqlite3 pandas.io import sql # create connection. cnx = sqlite3.connect('db_path')  cnx  cur = cnx.cursor()     cur.execute('select sqlite_version()') data = cur.fetchone() print "sqlite version: %s" % data   import contextlib contextlib.closing(sqlite3.connect(db_path)) conn:     conn.row_factory = sqlite3.row     cursor = conn.cursor()         cursor.execute("select name sqlite_master type='table'")     tablerow in cursor.fetchall():         print tablerow[0]         #table = tablerow[0]         #cursor.execute("select * {t}".format(t = table))         #for row in cursor:         #    field in row.keys():         #        print(table, field, row[field])  sql.read_frame('select * hzmo_report;', cnx)

i want select data hzmo_report table in pandas dataframe, saw in documentation @ http://pandas.pydata.org/pandas-docs/stable/io.html#sql-queries

error that: operationalerror: no such table: hzmo_report table exist.

here output of code: --------------------------------------------------------------------------- operationalerror                          traceback (most recent call last) <ipython-input-8-916237d66737> in <module>()      29         #        print(table, field, row[field])      30  ---> 31 sql.read_frame('select * hzmo_report;', cnx)      32   c:\documents , settings\hr1ub098\application data\python\python27\site-packages\pandas\io\sql.pyc in read_frame(sql, con, index_col, coerce_float)     141         column name use returned dataframe object.     142     """ --> 143     cur = execute(sql, con)     144     rows = _safe_fetch(cur)     145     columns = [col_desc[0] col_desc in cur.description]  c:\documents , settings\hr1ub098\application data\python\python27\site-packages\pandas\io\sql.pyc in execute(sql, con, retry, cur, params)      33       34         if params none: ---> 35             cur.execute(sql)      36         else:      37             cur.execute(sql, params)  operationalerror: no such table: hzmo_report  sqlite version: 3.6.21 auth_permission auth_group_permissions auth_group auth_user_user_permissions auth_user_groups auth_user django_content_type django_session django_site django_admin_log hzmo_report error on sql select * hzmo_report;

does have idea problem ? 

cnx = sqlite3.connect('db_path')

shouldn't argument variable created, not string? in above case might connecting new database named "db_path".

cnx = sqlite3.connect(db_path)

Comments

Post a Comment

Popular posts from this blog

php - Why I am getting the Error "Commands out of sync; you can't run this command now" -

the documentation of error mentioned in title says if commands out of sync; can't run command now in client code, calling client functions in wrong order. this can happen, example, if using mysql_use_result() , try execute new query before have called mysql_free_result(). can happen if try execute 2 queries return data without calling mysql_use_result() or mysql_store_result() in between. from here: http://dev.mysql.com/doc/refman/5.0/en/commands-out-of-sync.html but in first query not fetching data mysql database, inserting. , in second query getting data database. here code $connection = mysqli_connect("localhost","username","password","tbl_msgs"); if(mysqli_connect_errno($connection)) { die("failed connect mysql: " . mysqli_connect_error()); } $query = "insert users (total_comments, total_views) values ({$total_comments}, {$total_views});"; $query .= "insert msgs (no...
Read more

linux - Does gcc have any options to add version info in ELF binary file? -

i mean whether gcc can insert source code version infor elf binary section or similar. not want change source file, add info gcc option in makefile. you can emit version info text file, turn text file object file statically link executable. the first step simple have write code: script or write version info in format plain text file. write makefile rule produce version.o version.txt, using objcopy . you'll have object file 2 useful symbols defined in it: beginning , end of textual version info. add generated object executable, , you'll able access version 2 ways: running strings on binary, or writing code in application print version string (you'll need declare start , end symbols variables in header file).
Read more

java - Are there any classes that implement javax.persistence.Parameter<T>? -

i'm using named queries fetch entities database using jpa , hibernate , came across puzzling me: how come there no default implementations of javax.persistence.parameter interface? i rather impressed how @staticmetamodel used criteriabuilder in jpa2 meaning type safety , don't have mess around setting string names. wanted apply similar of jpa1 ejb's i'm working on: dealergroup_.class: public dealergroup_ { public parameter<integer> id = new parameterimpl<integer>("id"); /// etc... } dealergroupfacade.class: // ... public dealergroup fetch(integer id) { typedquery<dealergroup> query = em.createnamedquery("dealergroup.fetchbyid", dealergroup.class); query.setparameter(dealergroup_.id, query); return query.getsingleresult(); } // ... i surprised find there no implementations of parameter interface - of course, implement myself absence makes me suspicious may mistake using in way? should implementing parameter...
Read more