Update Dockerfile-cpu to force python3.9 (#7675)

* Update

* Update

* Do not install torch

* Pillow>9.1

* Update Dockerfile-cpu

* Update Dockerfile-cpu

* Update Dockerfile-cpu

* Update Dockerfile-cpu

* Update Dockerfile-cpu

* Update Dockerfile-cpu

* Update Dockerfile-cpu

* Update Dockerfile-cpu

* Update Dockerfile-cpu

* Update Dockerfile

* fix emoji

* reduce scipy

* add libpython3.9

* Update Dockerfile

requirements.txt

 Pillow>=7.1.2
 PyYAML>=5.3.1
 requests>=2.23.0
-scipy>=1.5
+scipy>=1.4.1  # Google Colab version
 torch>=1.7.0
 torchvision>=0.8.1
 tqdm>=4.41.0

utils/docker/Dockerfile

 # Install linux packages
 RUN apt update && apt install -y zip htop screen libgl1-mesa-glx
 
-# Install python dependencies
+# Install pip packages
 COPY requirements.txt .
 RUN python -m pip install --upgrade pip
 RUN pip uninstall -y torch torchvision torchtext
 RUN pip install --no-cache -r requirements.txt albumentations wandb gsutil notebook \
     torch==1.11.0+cu113 torchvision==0.12.0+cu113 -f https://download.pytorch.org/whl/cu113/torch_stable.html
-# RUN pip install --no-cache -U torch torchvision
 
 # Create working directory
 RUN mkdir -p /usr/src/app

utils/docker/Dockerfile-cpu

 # Install linux packages
 RUN apt update
 RUN DEBIAN_FRONTEND=noninteractive TZ=Etc/UTC apt install -y tzdata
-RUN apt install -y python3-pip git zip curl htop screen libgl1-mesa-glx libglib2.0-0
-RUN alias python=python3
+RUN apt install -y python3-pip git zip curl htop screen libgl1-mesa-glx libglib2.0-0 software-properties-common
 
-# Install python dependencies
+# Install python3.9
+RUN add-apt-repository ppa:deadsnakes/ppa -y
+RUN apt install python3.9 python3.9-distutils libpython3.9 -y
+# RUN alias python=python3.9
+
+# Install pip packages
 COPY requirements.txt .
-RUN python3 -m pip install --upgrade pip
-RUN pip install --no-cache -r requirements.txt albumentations gsutil notebook \
+RUN python3.9 -m pip install --upgrade pip
+RUN python3.9 -m pip install --no-cache -r requirements.txt albumentations gsutil notebook \
     coremltools onnx onnx-simplifier onnxruntime openvino-dev tensorflow-cpu tensorflowjs \
-    torch==1.11.0+cpu torchvision==0.12.0+cpu -f https://download.pytorch.org/whl/cpu/torch_stable.html
+    torch torchvision --extra-index-url https://download.pytorch.org/whl/cpu
 
 # Create working directory
 RUN mkdir -p /usr/src/app

utils/general.py

     if val:
         val = [Path(x).resolve() for x in (val if isinstance(val, list) else [val])]  # val path
         if not all(x.exists() for x in val):
-            LOGGER.info(emojis('\nDataset not found ⚠️, missing paths %s' % [str(x) for x in val if not x.exists()]))
+            LOGGER.info(emojis('\nDataset not found ⚠, missing paths %s' % [str(x) for x in val if not x.exists()]))
             if s and autodownload:  # download script
                 t = time.time()
                 root = path.parent if 'path' in data else '..'  # unzip directory i.e. '../'