From 4fd087572a1c597781fef8ca4fbcfebed825c0fb Mon Sep 17 00:00:00 2001
From: Ines Montani <ines@ines.io>
Date: Thu, 28 May 2020 12:51:37 +0200
Subject: [PATCH] WIP: improve model version deps

---
 spacy/cli/package.py | 2 +-
 spacy/util.py        | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/spacy/cli/package.py b/spacy/cli/package.py
index cf93c872f..15ae2033c 100644
--- a/spacy/cli/package.py
+++ b/spacy/cli/package.py
@@ -138,7 +138,7 @@ def list_files(data_dir):
 
 def list_requirements(meta):
     parent_package = meta.get('parent_package', 'spacy')
-    requirements = [parent_package + meta['spacy_version']]
+    requirements = [parent_package + '>=' + meta['spacy_version']]
     if 'setup_requires' in meta:
         requirements += meta['setup_requires']
     if 'requirements' in meta:
diff --git a/spacy/util.py b/spacy/util.py
index b614c29c7..4e468ef9d 100644
--- a/spacy/util.py
+++ b/spacy/util.py
@@ -265,6 +265,15 @@ def is_compatible_model(meta):
     return True
 
 
+def get_model_version_range(version):
+    """Generate a version range like >=1.2.3,<1.3.0 based on a given spaCy
+    version. Models are always compatible across patch versions but not
+    across minor or major versions.
+    """
+    major, minor = split_version(version)
+    return f">={version},<{major}.{minor + 1}.0"
+
+
 def load_config(path, create_objects=False):
     """Load a Thinc-formatted config file, optionally filling in objects where
     the config references registry entries. See "Thinc config files" for details.