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pythonjinja2piecash

jinja2 rendering issue: AttributeError: 'unicode' object has no attribute '__call__'

I am trying to execute the following filtered transaction report from the piecash project:

from __future__ import print_function
import datetime
import re
import os.path

from piecash import open_book


if __name__=='__main__':
    this_folder = os.path.dirname(os.path.realpath(__file__))
    s = open_book(os.path.join(this_folder, "teste.gnucash"), open_if_lock=True)
else:
    s = open_book(os.path.join("teste.gnucash"), open_if_lock=True)

# get default currency
print(s.default_currency)

regex_filter = re.compile(u"^/Ativos/Dinheiro/Carteira")

# retrieve relevant transactions
transactions = [tr for tr in s.transactions  # query all transactions in the book/session and filter them on
                if (regex_filter.search(tr.description)  # description field matching regex
                    or any(regex_filter.search(spl.memo) for spl in tr.splits))  # or memo field of any split of transaction
                and tr.post_date.date() >= datetime.date(2016, 03, 1)]  # and with post_date no later than begin nov.

try:
    import jinja2
except ImportError:
    print("\n\t*** Install jinja2 ('pip install jinja2') to test the jinja2 template version ***\n")
    jinja2 = None

if jinja2:
    env = jinja2.Environment(trim_blocks=True, lstrip_blocks=True)
    print(env.from_string("""
    Here are the transactions for the search criteria '{{regex.pattern}}':
    {% for tr in transactions %}
    - {{ tr.post_date.strftime("%Y/%m/%d") }} : {{ tr.description }}
      {% for spl in tr.splits %}
        {{ spl.value.__abs__() }} {% if spl.value < 0 %} --> {% else %} <-- {% endif %} {{ spl.account.fullname() }} : {{ spl.memo }}
      {% endfor %}
    {% endfor %}
    """).render(transactions=transactions,regex=regex_filter))

However I get the following error on the last line of the code, when trying to render the jinja2 template:

AttributeError: 'unicode' object has no attribute 'call'

I found that the last answer (by @brianz) from this question shed some light into the problem. transactionsis a list of unicode strings, while regex_filteris a compiled regex regular expression object, from which the pattern was extracted by the template in regex.pattern.

I tried to pass the regex.patterndirectly without any success, trying to follow the jinja2 api render example.

Any ideas on what exactly am I missing?

Solution

  • the last line of .format() does a lot of stuff to go wrong, specifically I noticed:

    {{ spl.account.fullname() }}

    which seems like the kind of name that could be an attribute or method so I asked and it seems it is in fact unicode that you tried to call. Mystery solved ;)