Re: [sqlite] Is it necessary to encode() for file names in sqlar format?
Yes. If it is bytes type then the data stored by the database will be a BLOB,
not TEXT ...
--
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>-Original Message-
>From: sqlite-users On
>Behalf Of Peng Yu
>Sent: Thursday, 30 January, 2020 02:24
>To: SQLite mailing list
>Subject: Re: [sqlite] Is it necessary to encode() for file names in sqlar
>format?
>
>So to confirm. In python 3, the str type should be used for name? Thanks.
>
>On Thu, Jan 30, 2020 at 12:58 AM Keith Medcalf
>wrote:
>
>>
>> sys.argv is a list of unicode text strings. There is no need to
>> specifically encode or decode it so long as sys.getdefaultencoding()
>> returns 'utf-8'. If your version of Python is so old that it returns
>> something else then you need to modify site.py and have it set the
>default
>> encoding to 'utf-8' otherwise you may end up with MBCS or some other
>> invalid text encoding in your database text fields.
>>
>> --
>> The fact that there's a Highway to Hell but only a Stairway to Heaven
>says
>> a lot about anticipated traffic volume.
>>
>> >-Original Message-
>> >From: sqlite-users On
>> >Behalf Of Peng Yu
>> >Sent: Wednesday, 29 January, 2020 22:57
>> >To: SQLite mailing list
>> >Subject: [sqlite] Is it necessary to encode() for file names in sqlar
>> >format?
>> >
>> >I use the following python3 code to create sqlar file. Is it necessary
>> >to sys.argv[2].encode('utf-8') in the line of execute()? In other
>> >word, does the native sqlar tools inteprete the name column as an
>> >encoded value or a non-encode value? Thanks.
>> >
>> >import sqlite3
>> >conn=sqlite3.connect(sys.argv[1])
>> >c=conn.cursor()
>> >c.execute('''
>> >CREATE TABLE IF NOT EXISTS sqlar(
>> >name TEXT PRIMARY KEY
>> >, mode INT
>> >, mtime INT
>> >, sz INT
>> >, data BLOB)
>> >''')
>> >
>> >import zlib
>> >data = sys.stdin.buffer.read()
>> >c.execute('REPLACE INTO sqlar VALUES(?, ?, ?, ?, ?)', [sys.argv[2], 0,
>> >0, len(data), zlib.compress(data)])
>> >conn.commit()
>> >
>> >--
>> >Regards,
>> >Peng
>> >___
>> >sqlite-users mailing list
>> >sqlite-users@mailinglists.sqlite.org
>> >http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
>>
>>
>>
>> ___
>> sqlite-users mailing list
>> sqlite-users@mailinglists.sqlite.org
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>>
>--
>Regards,
>Peng
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Re: [sqlite] Is it necessary to encode() for file names in sqlar format?
So to confirm. In python 3, the str type should be used for name? Thanks.
On Thu, Jan 30, 2020 at 12:58 AM Keith Medcalf wrote:
>
> sys.argv is a list of unicode text strings. There is no need to
> specifically encode or decode it so long as sys.getdefaultencoding()
> returns 'utf-8'. If your version of Python is so old that it returns
> something else then you need to modify site.py and have it set the default
> encoding to 'utf-8' otherwise you may end up with MBCS or some other
> invalid text encoding in your database text fields.
>
> --
> The fact that there's a Highway to Hell but only a Stairway to Heaven says
> a lot about anticipated traffic volume.
>
> >-Original Message-
> >From: sqlite-users On
> >Behalf Of Peng Yu
> >Sent: Wednesday, 29 January, 2020 22:57
> >To: SQLite mailing list
> >Subject: [sqlite] Is it necessary to encode() for file names in sqlar
> >format?
> >
> >I use the following python3 code to create sqlar file. Is it necessary
> >to sys.argv[2].encode('utf-8') in the line of execute()? In other
> >word, does the native sqlar tools inteprete the name column as an
> >encoded value or a non-encode value? Thanks.
> >
> >import sqlite3
> >conn=sqlite3.connect(sys.argv[1])
> >c=conn.cursor()
> >c.execute('''
> >CREATE TABLE IF NOT EXISTS sqlar(
> >name TEXT PRIMARY KEY
> >, mode INT
> >, mtime INT
> >, sz INT
> >, data BLOB)
> >''')
> >
> >import zlib
> >data = sys.stdin.buffer.read()
> >c.execute('REPLACE INTO sqlar VALUES(?, ?, ?, ?, ?)', [sys.argv[2], 0,
> >0, len(data), zlib.compress(data)])
> >conn.commit()
> >
> >--
> >Regards,
> >Peng
> >___
> >sqlite-users mailing list
> >sqlite-users@mailinglists.sqlite.org
> >http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
>
>
>
> ___
> sqlite-users mailing list
> sqlite-users@mailinglists.sqlite.org
> http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
>
--
Regards,
Peng
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Re: [sqlite] Is it necessary to encode() for file names in sqlar format?
sys.argv is a list of unicode text strings. There is no need to specifically
encode or decode it so long as sys.getdefaultencoding() returns 'utf-8'. If
your version of Python is so old that it returns something else then you need
to modify site.py and have it set the default encoding to 'utf-8' otherwise you
may end up with MBCS or some other invalid text encoding in your database text
fields.
--
The fact that there's a Highway to Hell but only a Stairway to Heaven says a
lot about anticipated traffic volume.
>-Original Message-
>From: sqlite-users On
>Behalf Of Peng Yu
>Sent: Wednesday, 29 January, 2020 22:57
>To: SQLite mailing list
>Subject: [sqlite] Is it necessary to encode() for file names in sqlar
>format?
>
>I use the following python3 code to create sqlar file. Is it necessary
>to sys.argv[2].encode('utf-8') in the line of execute()? In other
>word, does the native sqlar tools inteprete the name column as an
>encoded value or a non-encode value? Thanks.
>
>import sqlite3
>conn=sqlite3.connect(sys.argv[1])
>c=conn.cursor()
>c.execute('''
>CREATE TABLE IF NOT EXISTS sqlar(
>name TEXT PRIMARY KEY
>, mode INT
>, mtime INT
>, sz INT
>, data BLOB)
>''')
>
>import zlib
>data = sys.stdin.buffer.read()
>c.execute('REPLACE INTO sqlar VALUES(?, ?, ?, ?, ?)', [sys.argv[2], 0,
>0, len(data), zlib.compress(data)])
>conn.commit()
>
>--
>Regards,
>Peng
>___
>sqlite-users mailing list
>sqlite-users@mailinglists.sqlite.org
>http://mailinglists.sqlite.org/cgi-bin/mailman/listinfo/sqlite-users
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[sqlite] Is it necessary to encode() for file names in sqlar format?
I use the following python3 code to create sqlar file. Is it necessary
to sys.argv[2].encode('utf-8') in the line of execute()? In other
word, does the native sqlar tools inteprete the name column as an
encoded value or a non-encode value? Thanks.
import sqlite3
conn=sqlite3.connect(sys.argv[1])
c=conn.cursor()
c.execute('''
CREATE TABLE IF NOT EXISTS sqlar(
name TEXT PRIMARY KEY
, mode INT
, mtime INT
, sz INT
, data BLOB)
''')
import zlib
data = sys.stdin.buffer.read()
c.execute('REPLACE INTO sqlar VALUES(?, ?, ?, ?, ?)', [sys.argv[2], 0,
0, len(data), zlib.compress(data)])
conn.commit()
--
Regards,
Peng
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