"Error: near "(": syntax error" when using sqlite-utils indexes CLI

This bug relates to https://github.com/simonw/sqlite-utils/issues/408#issuecomment-1066139147

New error when using CLI: “sqlite-utils indexes global.db --table”

(app-root) sqlite-utils indexes global.db --table
Error: near "(": syntax error
(app-root) sqlite-utils --version
sqlite-utils, version 3.25.1
(app-root) sqlite3 --version
3.36.0 2021-06-18 18:36:39
(app-root) python --version
Python 3.8.11

Dockerfile

FROM centos/python-38-centos7

USER root

RUN yum update -y
RUN yum upgrade -y


# epel
RUN yum -y install epel-release && yum clean all

# SQLite
RUN yum -y install zlib-devel geos geos-devel proj proj-devel freexl freexl-devel libxml2-devel 

WORKDIR /build/
COPY sqlite-autoconf-3360000.tar.gz ./
RUN tar -zxf sqlite-autoconf-3360000.tar.gz
WORKDIR /build/sqlite-autoconf-3360000
RUN ./configure
RUN make
RUN make install

# 
RUN /opt/app-root/bin/python3.8 -m pip install --upgrade pip
RUN pip install sqlite-utils

[simonw]

I’m going to close this ticket since it looks like this is a bug in the way the Dockerfile builds Python, but I’m going to ship a fix for that issue I found so the LD_PRELOAD workaround above should work OK with the next release of sqlite-utils. Thanks for the detailed bug report!

[simonw]

Trying this alternative implementation of the register() method:

        def register(fn):
            name = fn.__name__
            arity = len(inspect.signature(fn).parameters)
            if not replace and (name, arity) in self._registered_functions:
                return fn
            kwargs = {}
            done = False
            if deterministic:
                # Try this, but fall back if sqlite3.NotSupportedError
                try:
                    self.conn.create_function(name, arity, fn, **dict(kwargs, deterministic=True))
                    done = True
                except sqlite3.NotSupportedError:
                    pass
            if not done:
                self.conn.create_function(name, arity, fn, **kwargs)
            self._registered_functions.add((name, arity))
            return fn

With that fix, the following worked!

LD_PRELOAD=./build/sqlite-autoconf-3360000/.libs/libsqlite3.so sqlite-utils indexes /tmp/global.db --table
table      index_name                    seqno    cid  name       desc  coll      key
---------  --------------------------  -------  -----  -------  ------  ------  -----
countries  idx_countries_country_name        0      1  country       0  BINARY      1
countries  idx_countries_country_name        1      2  name          0  BINARY      1