work around pypa/pip#11386

.github/workflows/pythonpackage.yml

@@ -13,7 +13,7 @@ jobs:
       - name: Install dependencies
         run: |
           pip install --upgrade pip
-          pip install -e .
+          pip install -e . --config-settings editable_mode=compat
           pip install -r requirements.txt
       - name: flake8
         run: flake8 dedupe tests benchmarks/benchmarks

README.md

@@ -61,10 +61,8 @@ Once you have virtualenvwrapper set up,
 mkvirtualenv dedupe
 git clone git://github.com/dedupeio/dedupe.git
 cd dedupe
-pip install "numpy>=1.9"
+pip install -e . --config-settings editable_mode=compat
 pip install -r requirements.txt
-cython src/*.pyx
-pip install -e .
 ```
 
 If these tests pass, then everything should have been installed correctly!

dedupe/api.py

@@ -401,10 +401,10 @@ def pairs(self, data_1: Data, data_2: Data) -> RecordPairs:
             self.fingerprinter.reset_indices()
 
             con.executescript(
-                """CREATE INDEX block_key_a_idx
+                """CREATE UNIQUE INDEX block_key_a_idx
                                  ON blocking_map_a (record_id, block_key);
 
-                                 CREATE INDEX block_key_b_idx
+                   CREATE UNIQUE INDEX block_key_b_idx
                                  ON blocking_map_b (block_key, record_id);"""
             )
             con.execute("""ANALYZE""")
@@ -682,7 +682,7 @@ def index(self, data: Data) -> None:  # pragma: no cover
         )
 
         con.execute(
-            """CREATE INDEX IF NOT EXISTS
+            """CREATE UNIQUE INDEX IF NOT EXISTS
                        indexed_records_block_key_idx
                        ON indexed_records
                        (block_key, record_id)"""

tests/test_api.py

@@ -3,7 +3,6 @@
 import warnings
 from collections import OrderedDict
 
-import dedupe
 import dedupe.api