yes, your method works.
changing the __repr__ line under gluon/storage.py to "__repr__ = lambda
self: 'Storage(%s)' % dict.__repr__(self)" will also allow eval(s1) to
create the proper and filled Storage instance, or without changing
storage.py:
if 1:
ss = Storage(s='main')
ss.happy = 'yes happy'
#ss.status = Storage(s1="1status1", s2="2status2")
print("1:::", ss, type(ss))
s1 = repr(ss)
print("2:::", s1, type(s1))
s2 = 'Storage('+s1[9:-1]+')'
print('"%s"' % s2)
s2 = eval(s2)
print("3:::", s2, type(s2))
print(s2.happy)
exit()
where we replace the "<Storage " with "Storage(" at the beginning and ">"
with ")" at the end and eval does the rest.
thank you for your help. i think __repr__ should be updated to my
suggestion above so its easier to convert to and from string for easier db
storage of python data. lucas
On Wednesday, April 28, 2021 at 3:14:59 AM UTC-4 [email protected] wrote:
> On Sunday, April 25, 2021 at 12:52:24 PM UTC-7 lucas wrote:
>
>> i'm sorry that doesn't make sense to me. nonetheless, i tried it with
>> different variable names, as:
>
>
> My thought was that using the same name was getting into type problems,.
>
>>
>> if 1:
>> ss = Storage(s='main')
>> ss.happy = 'yes happy'
>> print("1:::", ss, type(ss))
>> s1 = repr(ss)
>> print("2:::", s1, type(s1))
>> s2 = eval(s1)
>> print("3:::", s2, type(s2))
>>
>> and i still got the same error:
>> 1::: <Storage {'s': 'main', 'happy': 'yes happy'}> <class
>> 'gluon.storage.Storage'>
>> 2::: <Storage {'s': 'main', 'happy': 'yes happy'}> <class 'str'>
>> Traceback (most recent call last):
>> File "./web2py_Storage.py", line 17, in <module>
>> s2 = eval(s1)
>> File "<string>", line 1
>> <Storage {'s': 'main', 'happy': 'yes happy'}>
>> ^
>> SyntaxError: invalid syntax
>>
>> there are so many convertors like to and from json, wouldn't it make
>> sense to and from string for storage? thank you again, lucas
>>
>
>
> Storage is a special version of dictionary (er, dict), and I don't
> recognize eval() as a way to initialize a dictionary. Storage is also
> pretty simple as a child of dict; gluon/storage.py isn't many lines, and
> Storage isn't the only class defined there.
>
> This does work:
>
> s1 = "<Storage {'s': 'main', 'happy': 'yes happy'}>"
> s2 = Storage()
> for sub in s1.replace("<Storage {'",'').replace("'}>",'').split(','):
> key, val = sub.replace("'", "").split(':')
> key = key.strip().rstrip()
> val = val.strip().rstrip()
> s2[key] = val
>
> print(s1, type(s1))
> print(s2, type(s2))
>
> Most of the mess in the code comes from de-formatting s1
>
>
>> On Sunday, April 25, 2021 at 3:07:29 AM UTC-4 [email protected] wrote:
>>
>>> On Friday, April 23, 2021 at 9:43:19 AM UTC-7 lucas wrote:
>>>
>>>> hello one and all,
>>>>
>>>> i'd like to save and recover Storage instances to a text blob field in
>>>> a database. converting to the string is not hard to store it in the
>>>> field. recovering it back to a Storage instance is other issue,
>>>> especially
>>>> when they're embedded Storage objects in the main Storage object. i've
>>>> tried from a script file not under a web2py application as:
>>>>
>>>> #!/usr/bin/env python3
>>>> # -*- coding: utf-8 -*-
>>>> from sys import path, argv
>>>> path.append('/opt/web2py_apps/web2py/')
>>>> from gluon import *
>>>> from gluon.storage import Storage
>>>> if 1:
>>>> ss = Storage(s='main')
>>>> ss.happy = 'yes happy'
>>>> #ss.status = Storage(s1="1status1", s2="2status2")
>>>> print("1:::", ss, type(ss))
>>>> ss = repr(ss)
>>>> print("2:::", ss, type(ss))
>>>> #xglobal, xlocal = globals(), { }
>>>> #eval(ss, xglobal, xlocal)
>>>> ss = eval(ss)
>>>> print("3:::", ss, type(ss))
>>>> exit()
>>>>
>>>> with output:
>>>> 1::: <Storage {'s': 'main', 'happy': 'yes happy'}> <class
>>>> 'gluon.storage.Storage'>
>>>> 2::: <Storage {'s': 'main', 'happy': 'yes happy'}> <class 'str'>
>>>> Traceback (most recent call last):
>>>> File "./web2py_Storage.py", line 17, in <module>
>>>> ss = eval(ss)
>>>> File "<string>", line 1
>>>> <Storage {'s': 'main', 'happy': 'yes happy'}>
>>>> ^
>>>> SyntaxError: invalid syntax
>>>>
>>>> any ideas how to make this work smoothly? thank you in advance, lucas
>>>>
>>>
>>> When you convert the storage to string (via the repr() call), don't use
>>> the same name.
>>>
>>> /dps
>>>
>>>
>>>
>>
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