Try import pyarrow and pandas when necessary

.github/workflows/build_wheels.yml

@@ -1,6 +1,12 @@
 name: Build
 
-on: [push, pull_request]
+on:
+  push:
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - pybind
 
 jobs:
   build_wheels_linux:
@@ -82,6 +88,7 @@ jobs:
           export CC=/usr/bin/clang
           export CXX=/usr/bin/clang++
           bash ./chdb/build.sh
+          python3 -m pip install pandas pyarrow
           bash -x ./chdb/test_smoke.sh
         continue-on-error: false
       - name: Check ccache statistics
@@ -148,7 +155,6 @@ jobs:
         run: |
           pwd
           uname -a
-          export HOMEBREW_NO_AUTO_UPDATE=1
           export HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1
           brew install git ccache ninja libtool gettext llvm@15 gcc binutils grep findutils zstd
           export PATH=$(brew --prefix llvm@15)/bin:$PATH
@@ -193,12 +199,13 @@ jobs:
           export CXX=$(brew --prefix llvm@15)/bin/clang++
           bash gen_manifest.sh
           bash ./chdb/build.sh
+          python3 -m pip install pandas pyarrow
           bash -x ./chdb/test_smoke.sh
         continue-on-error: false
       - name: Keep killall ccache and wait for ccache to finish
         if: always()
         run: |
-          sleep 300
+          sleep 60
           while ps -ef | grep ccache | grep -v grep; do \
             killall ccache; \
             sleep 10; \
@@ -261,7 +268,6 @@ jobs:
         run: |
           pwd
           uname -a
-          export HOMEBREW_NO_AUTO_UPDATE=1
           export HOMEBREW_NO_INSTALLED_DEPENDENTS_CHECK=1
           brew install git ccache ninja libtool gettext llvm@15 gcc binutils grep findutils zstd
           export PATH=$(brew --prefix llvm@15)/bin:$PATH
@@ -349,7 +355,7 @@ jobs:
       - name: Keep killall ccache and wait for ccache to finish
         if: always()
         run: |
-          sleep 300
+          sleep 60
           while ps -ef | grep ccache | grep -v grep; do \
             killall ccache; \
             sleep 10; \

chdb/__init__.py

@@ -1,8 +1,7 @@
 import sys
 import os
-import pyarrow as pa
 
-chdb_version = (0, 1, 0)
+chdb_version = (0, 5, 0)
 if sys.version_info[:2] >= (3, 7):
     # get the path of the current file
     current_path = os.path.dirname(os.path.abspath(__file__))
@@ -23,19 +22,32 @@
 except:  # pragma: no cover
     __version__ = "unknown"
 
-
-def _to_arrowTable(res):
+# return pyarrow table
+def to_arrowTable(res):
     """convert res to arrow table"""
+    # try import pyarrow and pandas, if failed, raise ImportError with suggestion
+    try:
+        import pyarrow as pa
+        import pandas
+    except ImportError as e:
+        print(f'ImportError: {e}')
+        print('Please install pyarrow and pandas via "pip install pyarrow pandas"')
+        raise ImportError('Failed to import pyarrow or pandas') from None
+
     return pa.RecordBatchFileReader(res.get_memview()).read_all()
 
+# return pandas dataframe
 def to_df(r):
     """"convert arrow table to Dataframe"""
-    t = _to_arrowTable(r)
+    t = to_arrowTable(r)
     return t.to_pandas(use_threads=True)
 
 # wrap _chdb functions
 def query(sql, output_format="CSV", **kwargs):
-    if output_format.lower() == "dataframe":
-        r = _chdb.query(sql, "Arrow", **kwargs)
-        return to_df(r)
-    return _chdb.query(sql, output_format, **kwargs)
+    lower_output_format = output_format.lower()
+    if lower_output_format == "dataframe":
+        return to_df(_chdb.query(sql, "Arrow", **kwargs))
+    elif lower_output_format == 'arrowtable':
+        return to_arrowTable(_chdb.query(sql, "Arrow", **kwargs))
+    else:
+        return _chdb.query(sql, output_format, **kwargs)

setup.py

@@ -1,5 +1,6 @@
 import os
 import sys
+import re
 import subprocess
 import sysconfig
 from setuptools import setup, Extension
@@ -57,6 +58,21 @@ def get_latest_git_tag(minor_ver_auto=False):
         print(e)
         raise
 
+# replace the version in chdb/__init__.py, which is `chdb_version = (0, 1, 0)` by default
+# regex replace the version string `chdb_version = (0, 1, 0)` with version parts
+def fix_version_init(version):
+    # split version string into parts
+    p1, p2, p3 = version.split('.')
+    init_file = os.path.join(script_dir, "chdb", "__init__.py")
+    with open(init_file, "r+") as f:
+        init_content = f.read()
+        # regex replace the version string `chdb_version = (0, 1, 0)`
+        regPattern = r"chdb_version = \(\d+, \d+, \d+\)"
+        init_content = re.sub(regPattern, f"chdb_version = ({p1}, {p2}, {p3})", init_content)
+        f.seek(0)
+        f.write(init_content)
+        f.truncate()
+
 
 # As of Python 3.6, CCompiler has a `has_flag` method.
 # cf http://bugs.python.org/issue26689
@@ -147,15 +163,16 @@ def build_extensions(self):
                 extra_objects=[chdb_so],
             ),
         ]
-
+        # fix the version in chdb/__init__.py
+        versionStr = get_latest_git_tag()
+        fix_version_init(versionStr)
         setup(
             packages=['chdb'],
-            version=get_latest_git_tag(),
+            version=versionStr,
             package_data={'chdb': [chdb_so]},
             exclude_package_data={'': ['*.pyc', 'src/**']},
             ext_modules=ext_modules,
             python_requires='>=3.7',
-            install_requires=['pyarrow', 'pandas'],
             cmdclass={'build_ext': BuildExt},
             test_suite="tests",
             zip_safe=False,