FEAT-#4035: Upgrade pandas support to 1.4

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
           fetch-depth: 1
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.7.x"
+          python-version: "3.8.x"
           architecture: "x64"
       - run: pip install black
       - run: black --check --diff modin/ asv_bench/benchmarks scripts/doc_checker.py
@@ -43,7 +43,7 @@ jobs:
           fetch-depth: 1
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.7.x"
+          python-version: "3.8.x"
           architecture: "x64"
       - run: pip install -r docs/requirements-doc.txt
       - run: cd docs && sphinx-build -T -E -b html . build
@@ -57,7 +57,7 @@ jobs:
           fetch-depth: 1
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.7.x"
+          python-version: "3.8.x"
           architecture: "x64"
       - run: pip install pytest pytest-cov pydocstyle numpydoc==1.1.0 xgboost
       - run: pytest scripts/test
@@ -132,7 +132,7 @@ jobs:
           fetch-depth: 1
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.7.x"
+          python-version: "3.8.x"
           architecture: "x64"
       - run: pip install flake8 flake8-print
       - run: flake8 --enable=T modin/ asv_bench/benchmarks scripts/doc_checker.py
@@ -152,7 +152,7 @@ jobs:
         with:
           activate-environment: modin
           environment-file: environment-dev.yml
-          python-version: 3.7
+          python-version: 3.8
           channel-priority: strict
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
           # Miniconda setup sometimes fails because of an HTTP error. Retry
@@ -185,7 +185,7 @@ jobs:
         with:
           activate-environment: modin
           environment-file: environment-dev.yml
-          python-version: 3.7
+          python-version: 3.8
           channel-priority: strict
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
           # Miniconda setup sometimes fails because of an http error. retry
@@ -214,7 +214,7 @@ jobs:
           fetch-depth: 1
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.7.x"
+          python-version: "3.8.x"
           architecture: "x64"
       - name: Clean install and run
         run: |
@@ -235,7 +235,7 @@ jobs:
           fetch-depth: 1
       - uses: actions/setup-python@v2
         with:
-          python-version: "3.7.x"
+          python-version: "3.8.x"
           architecture: "x64"
       - name: Clean install and run
         run: |
@@ -258,7 +258,7 @@ jobs:
         with:
           activate-environment: modin
           environment-file: environment-dev.yml
-          python-version: 3.7
+          python-version: 3.8
           channel-priority: strict
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
           # Miniconda setup sometimes fails because of an http error. retry
@@ -294,7 +294,7 @@ jobs:
     env:
       MODIN_MEMORY: 1000000000
       MODIN_TEST_DATASET_SIZE: "small"
-    name: Test ${{ matrix.execution }} execution, Python 3.7
+    name: Test ${{ matrix.execution }} execution, Python 3.8
     steps:
       - uses: actions/checkout@v2
         with:
@@ -303,7 +303,7 @@ jobs:
         with:
           activate-environment: modin
           environment-file: environment-dev.yml
-          python-version: 3.7
+          python-version: 3.8
           channel-priority: strict
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
           # Miniconda setup sometimes fails because of an http error. retry
@@ -355,7 +355,7 @@ jobs:
         shell: bash -l {0}
     env:
       MODIN_STORAGE_FORMAT: "omnisci"
-    name: Test OmniSci storage format, Python 3.7
+    name: Test OmniSci storage format, Python 3.8
     steps:
       - uses: actions/checkout@v2
         with:
@@ -365,7 +365,7 @@ jobs:
         with:
           activate-environment: modin_on_omnisci
           environment-file: requirements/env_omnisci.yml
-          python-version: 3.7
+          python-version: 3.8
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
           # Miniconda setup sometimes fails because of an http error. retry
           # it once if it fails. todo(https://github.com/conda-incubator/setup-miniconda/issues/129):
@@ -469,7 +469,7 @@ jobs:
         shell: bash -l {0}
     strategy:
       matrix:
-        python-version: ["3.7", "3.8"]
+        python-version: ["3.8"]
         engine: ["python", "ray", "dask"]
     env:
       MODIN_ENGINE: ${{matrix.engine}}
@@ -556,7 +556,7 @@ jobs:
         with:
           activate-environment: modin
           environment-file: environment-dev.yml
-          python-version: 3.7
+          python-version: 3.8
           channel-priority: strict
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
           # Miniconda setup sometimes fails because of an http error. retry
@@ -602,7 +602,7 @@ jobs:
         with:
           activate-environment: modin
           environment-file: environment-dev.yml
-          python-version: 3.7
+          python-version: 3.8
           channel-priority: strict
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
           # Miniconda setup sometimes fails because of an http error. retry
@@ -640,7 +640,7 @@ jobs:
         shell: bash -l {0}
     strategy:
       matrix:
-        python-version: ["3.7", "3.8"]
+        python-version: ["3.8"]
         engine: ["ray", "dask"]
         test-task:
           - modin/pandas/test/dataframe/test_binary.py
@@ -702,7 +702,7 @@ jobs:
         shell: bash -l {0}
     strategy:
       matrix:
-        python-version: ["3.7", "3.8"]
+        python-version: ["3.8"]
     env:
       MODIN_STORAGE_FORMAT: pyarrow
       MODIN_EXPERIMENTAL: "True"
@@ -739,7 +739,7 @@ jobs:
         shell: bash -l {0}
     strategy:
       matrix:
-        python-version: [ "3.7", "3.8" ]
+        python-version: ["3.8" ]
         engine: ["ray", "dask"]
     env:
       MODIN_EXPERIMENTAL: "True"

.github/workflows/push-to-master.yml

@@ -18,11 +18,11 @@ jobs:
         with:
           activate-environment: modin
           environment-file: requirements/requirements-no-engine.yml
-          python-version: 3.7
+          python-version: 3.8
           channel-priority: strict
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
       - name: install Ray nightly build
-        run: pip install https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-2.0.0.dev0-cp37-cp37m-manylinux2014_x86_64.whl
+        run: pip install https://s3-us-west-2.amazonaws.com/ray-wheels/latest/ray-2.0.0.dev0-cp38-cp38-manylinux2014_x86_64.whl
       - name: Conda environment
         run: |
           conda info
@@ -63,7 +63,7 @@ jobs:
         with:
           activate-environment: modin
           environment-file: environment-dev.yml
-          python-version: 3.7
+          python-version: 3.8
           channel-priority: strict
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
       - name: Conda environment
@@ -81,7 +81,7 @@ jobs:
         shell: bash -l {0}
     strategy:
       matrix:
-        python-version: ["3.7", "3.8"]
+        python-version: ["3.8"]
         test-task:
           - modin/pandas/test/dataframe/test_binary.py
           - modin/pandas/test/dataframe/test_default.py
@@ -118,8 +118,6 @@ jobs:
       - run: pip install -r requirements-dev.txt --use-deprecated=legacy-resolver
       # Use a ray master commit that includes the fix here: https://github.com/ray-project/ray/pull/16278
       # Can be changed after a Ray version > 1.4 is released.
-      - run: pip install https://s3-us-west-2.amazonaws.com/ray-wheels/master/c8e3ed9eec30119092ef966ee7b8982c8954c333/ray-2.0.0.dev0-cp37-cp37m-manylinux2014_x86_64.whl
-        if: matrix.python-version == '3.7'
       - run: pip install https://s3-us-west-2.amazonaws.com/ray-wheels/master/c8e3ed9eec30119092ef966ee7b8982c8954c333/ray-2.0.0.dev0-cp38-cp38-manylinux2014_x86_64.whl
         if: matrix.python-version == '3.8'
       - name: Install HDF5

.github/workflows/push.yml

@@ -15,7 +15,7 @@ jobs:
         with:
           activate-environment: modin
           environment-file: environment-dev.yml
-          python-version: 3.7
+          python-version: 3.8
           channel-priority: strict
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
       - name: Conda environment
@@ -41,7 +41,7 @@ jobs:
     env:
       MODIN_MEMORY: 1000000000
       MODIN_TEST_DATASET_SIZE: "small"
-    name: Test ${{ matrix.execution }} execution, Python 3.7
+    name: Test ${{ matrix.execution }} execution, Python 3.8
     steps:
       - uses: actions/checkout@v2
         with:
@@ -50,7 +50,7 @@ jobs:
         with:
           activate-environment: modin
           environment-file: environment-dev.yml
-          python-version: 3.7
+          python-version: 3.8
           channel-priority: strict
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
       - name: Conda environment
@@ -96,7 +96,7 @@ jobs:
       MODIN_EXPERIMENTAL: "True"
       MODIN_ENGINE: "native"
       MODIN_STORAGE_FORMAT: "omnisci"
-    name: Test OmniSci storage format, Python 3.7
+    name: Test OmniSci storage format, Python 3.8
     steps:
       - uses: actions/checkout@v2
         with:
@@ -106,7 +106,7 @@ jobs:
         with:
           activate-environment: modin_on_omnisci
           environment-file: requirements/env_omnisci.yml
-          python-version: 3.7
+          python-version: 3.8
           use-only-tar-bz2: true # IMPORTANT: This needs to be set for caching to work properly!
       - name: Conda environment
         run: |
@@ -135,7 +135,7 @@ jobs:
         shell: bash -l {0}
     strategy:
       matrix:
-        python-version: ["3.7", "3.8"]
+        python-version: ["3.8"]
         engine: ["python", "ray", "dask"]
     env:
       MODIN_ENGINE: ${{matrix.engine}}
@@ -202,7 +202,7 @@ jobs:
         shell: bash -l {0}
     strategy:
       matrix:
-        python-version: ["3.7", "3.8"]
+        python-version: ["3.8"]
         engine: ["ray", "dask"]
         test-task:
           - modin/pandas/test/dataframe/test_binary.py
@@ -257,7 +257,7 @@ jobs:
         shell: bash -l {0}
     strategy:
       matrix:
-        python-version: ["3.7", "3.8"]
+        python-version: ["3.8"]
     env:
       MODIN_STORAGE_FORMAT: pyarrow
       MODIN_EXPERIMENTAL: "True"
@@ -287,7 +287,7 @@ jobs:
         shell: bash -l {0}
     strategy:
       matrix:
-        python-version: [ "3.7", "3.8" ]
+        python-version: ["3.8"]
         engine: ["ray", "dask"]
     env:
       MODIN_EXPERIMENTAL: "True"

environment-dev.yml

@@ -2,8 +2,8 @@ name: modin
 channels:
   - conda-forge
 dependencies:
-  - pandas==1.3.5
-  - numpy>=1.16.5
+  - pandas==1.4.0
+  - numpy>=1.18.5
   - pyarrow>=4.0.1
   - dask[complete]>=2.22.0
   - distributed>=2.22.0

modin/core/io/io.py

@@ -23,7 +23,7 @@
 
 import pandas
 import pandas._libs.lib as lib
-from pandas._typing import CompressionOptions, FilePathOrBuffer, StorageOptions
+from pandas._typing import CompressionOptions, StorageOptions
 from pandas.util._decorators import doc
 
 from modin.db_conn import ModinDatabaseConnection
@@ -826,7 +826,7 @@ def to_sql(
     def to_pickle(
         cls,
         obj: Any,
-        filepath_or_buffer: FilePathOrBuffer,
+        filepath_or_buffer,
         compression: CompressionOptions = "infer",
         protocol: int = pickle.HIGHEST_PROTOCOL,
         storage_options: StorageOptions = None,

modin/core/io/text/fwf_dispatcher.py

@@ -14,7 +14,6 @@
 """Module houses `FWFDispatcher` class, that is used for reading of tables with fixed-width formatted lines."""
 
 import pandas
-from pandas._typing import FilePathOrBuffer
 
 from modin.core.io.text.text_file_dispatcher import TextFileDispatcher
 
@@ -27,7 +26,7 @@ class FWFDispatcher(TextFileDispatcher):
     @classmethod
     def check_parameters_support(
         cls,
-        filepath_or_buffer: FilePathOrBuffer,
+        filepath_or_buffer,
         read_kwargs: dict,
     ):
         """

modin/core/io/text/text_file_dispatcher.py

@@ -27,7 +27,6 @@
 import numpy as np
 import pandas
 import pandas._libs.lib as lib
-from pandas._typing import FilePathOrBuffer
 from pandas.core.dtypes.common import is_list_like
 
 from modin.core.io.file_dispatcher import FileDispatcher, OpenFile
@@ -36,7 +35,7 @@
 from modin.core.io.text.utils import CustomNewlineIterator
 from modin.config import NPartitions
 
-ColumnNamesTypes = Tuple[Union[pandas.Index, pandas.MultiIndex, pandas.Int64Index]]
+ColumnNamesTypes = Tuple[Union[pandas.Index, pandas.MultiIndex]]
 IndexColType = Union[int, str, bool, Sequence[int], Sequence[str], None]
 
 
@@ -614,7 +613,7 @@ def _launch_tasks(cls, splits: list, **partition_kwargs) -> Tuple[list, list, li
     @classmethod
     def check_parameters_support(
         cls,
-        filepath_or_buffer: FilePathOrBuffer,
+        filepath_or_buffer,
         read_kwargs: dict,
     ) -> bool:
         """
@@ -912,7 +911,7 @@ def _get_new_qc(
         return new_query_compiler
 
     @classmethod
-    def _read(cls, filepath_or_buffer: FilePathOrBuffer, **kwargs):
+    def _read(cls, filepath_or_buffer, **kwargs):
         """
         Read data from `filepath_or_buffer` according to `kwargs` parameters.
 

modin/core/storage_formats/pandas/parsers.py

@@ -189,6 +189,9 @@ def generic_parse(fname, **kwargs):
 
             bio.seek(start)
             to_read = header + bio.read(end - start)
+        if "memory_map" in kwargs:
+            kwargs = kwargs.copy()
+            del kwargs["memory_map"]
         pandas_df = callback(BytesIO(to_read), **kwargs)
         index = (
             pandas_df.index

modin/experimental/core/execution/native/implementations/omnisci_on_native/io/io.py

@@ -37,7 +37,6 @@
 
 import pandas
 import pandas._libs.lib as lib
-from pandas._typing import FilePathOrBuffer
 from pandas.io.common import is_url
 
 ReadCsvKwargsType = Dict[
@@ -51,7 +50,6 @@
         Sequence,
         Callable,
         Dialect,
-        FilePathOrBuffer,
         None,
     ],
 ]