I'm working on a python project. It is a CLI based project and I want to package this project with docker. I create a .Docker file and include the content as per my project. # Use an official Python runtime as a parent image FROM python:3.12-slim # Set the working directory in the container WORKDIR /app # Copy the requirements file into the container at /app COPY requirements.txt . # Install any dependencies RUN pip install --default-timeout=100 --retries=10 --no-cache-dir -r requirements.txt # Copy the project files into the container COPY . . # Set the entry point to the Python interpreter ENTRYPOINT ["python"] # Set the default command to run your CLI script (without any specific action) CMD ["CLI.py"] The things is, when I run the command docker build -t trustvault ., it start processing to package it but when it reach at the line RUN pip install --default-timeout=100 --retries=10 --no-cache-dir -r requirements.txt, it throw ReadTimeoutError. here's the requirements.txt file. watchdog==6.0.0 joblib==1.4.2 scikit-learn==1.6.1 pandas==2.2.3 mysql-connector-python==9.3.0 python-dotenv==1.1.0 you can find the complete error message below: [+] Building 128.2s (8/9) docker:default => [internal] load build definition from Dockerfile 0.0s => => transferring dockerfile: 586B 0.0s => [internal] load metadata for docker.io/library/python:3.12-slim 0.8s => [internal] load .dockerignore 0.0s => => transferring context: 113B 0.0s => [1/5] FROM docker.io/library/python:3.12-slim@sha256:85824326bc4ae27a1abb5bc0dd9e08847aa5fe73d8afb593b1b45b7cb4180f57 0.0s => [internal] load build context 0.0s => => transferring context: 11.46kB 0.0s => CACHED [2/5] WORKDIR /app 0.0s => [3/5] COPY requirements.txt . 0.1s => ERROR [4/5] RUN pip install --default-timeout=100 --retries=10 --no-cache-dir -r requirements.txt 127.1s ------ > [4/5] RUN pip install --default-timeout=100 --retries=10 --no-cache-dir -r requirements.txt: 3.113 Collecting watchdog==6.0.0 (from -r requirements.txt (line 1)) 3.266 Downloading watchdog-6.0.0-py3-none-manylinux2014_x86_64.whl.metadata (44 kB) 3.363 Collecting joblib==1.4.2 (from -r requirements.txt (line 2)) 3.452 Downloading joblib-1.4.2-py3-none-any.whl.metadata (5.4 kB) 3.742 Collecting scikit-learn==1.6.1 (from -r requirements.txt (line 3)) 3.811 Downloading scikit_learn-1.6.1-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (18 kB) 4.126 Collecting pandas==2.2.3 (from -r requirements.txt (line 4)) 4.155 Downloading pandas-2.2.3-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (89 kB) 4.403 Collecting mysql-connector-python==9.3.0 (from -r requirements.txt (line 5)) 4.466 Downloading mysql_connector_python-9.3.0-cp312-cp312-manylinux_2_28_x86_64.whl.metadata (7.5 kB) 4.518 Collecting python-dotenv==1.1.0 (from -r requirements.txt (line 6)) 4.552 Downloading python_dotenv-1.1.0-py3-none-any.whl.metadata (24 kB) 4.933 Collecting numpy>=1.19.5 (from scikit-learn==1.6.1->-r requirements.txt (line 3)) 4.966 Downloading numpy-2.2.5-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (62 kB) 5.479 Collecting scipy>=1.6.0 (from scikit-learn==1.6.1->-r requirements.txt (line 3)) 5.520 Downloading scipy-1.15.2-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (61 kB) 5.612 Collecting threadpoolctl>=3.1.0 (from scikit-learn==1.6.1->-r requirements.txt (line 3)) 5.652 Downloading threadpoolctl-3.6.0-py3-none-any.whl.metadata (13 kB) 5.713 Collecting python-dateutil>=2.8.2 (from pandas==2.2.3->-r requirements.txt (line 4)) 5.808 Downloading python_dateutil-2.9.0.post0-py2.py3-none-any.whl.metadata (8.4 kB) 6.072 Collecting pytz>=2020.1 (from pandas==2.2.3->-r requirements.txt (line 4)) 6.330 Downloading pytz-2025.2-py2.py3-none-any.whl.metadata (22 kB) 6.399 Collecting tzdata>=2022.7 (from pandas==2.2.3->-r requirements.txt (line 4)) 6.791 Downloading tzdata-2025.2-py2.py3-none-any.whl.metadata (1.4 kB) 6.840 Collecting six>=1.5 (from python-dateutil>=2.8.2->pandas==2.2.3->-r requirements.txt (line 4)) 6.872 Downloading six-1.17.0-py2.py3-none-any.whl.metadata (1.7 kB) 6.929 Downloading watchdog-6.0.0-py3-none-manylinux2014_x86_64.whl (79 kB) 7.000 Downloading joblib-1.4.2-py3-none-any.whl (301 kB) 7.138 Downloading scikit_learn-1.6.1-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (13.1 MB) 17.22 ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 13.1/13.1 MB 2.0 MB/s eta 0:00:00 17.26 Downloading pandas-2.2.3-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (12.7 MB) 126.6 ━━━━━━━━━━━━━╸ 4.5/12.7 MB 1.9 MB/s eta 0:00:05 126.8 ERROR: Exception: 126.8 Traceback (most recent call last): 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_vendor/urllib3/response.py", line 438, in _error_catcher 126.8 yield 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_vendor/urllib3/response.py", line 561, in read 126.8 data = self._fp_read(amt) if not fp_closed else b"" 126.8 ^^^^^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_vendor/urllib3/response.py", line 527, in _fp_read 126.8 return self._fp.read(amt) if amt is not None else self._fp.read() 126.8 ^^^^^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/http/client.py", line 479, in read 126.8 s = self.fp.read(amt) 126.8 ^^^^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/socket.py", line 720, in readinto 126.8 return self._sock.recv_into(b) 126.8 ^^^^^^^^^^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/ssl.py", line 1251, in recv_into 126.8 return self.read(nbytes, buffer) 126.8 ^^^^^^^^^^^^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/ssl.py", line 1103, in read 126.8 return self._sslobj.read(len, buffer) 126.8 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 126.8 TimeoutError: The read operation timed out 126.8 126.8 During handling of the above exception, another exception occurred: 126.8 126.8 Traceback (most recent call last): 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 106, in _run_wrapper 126.8 status = _inner_run() 126.8 ^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_internal/cli/base_command.py", line 97, in _inner_run 126.8 return self.run(options, args) 126.8 ^^^^^^^^^^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_internal/cli/req_command.py", line 67, in wrapper 126.8 return func(self, options, args) 126.8 ^^^^^^^^^^^^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_internal/commands/install.py", line 386, in run 126.8 requirement_set = resolver.resolve( 126.8 ^^^^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_internal/resolution/resolvelib/resolver.py", line 179, in resolve 126.8 self.factory.preparer.prepare_linked_requirements_more(reqs) 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_internal/operations/prepare.py", line 554, in prepare_linked_requirements_more 126.8 self._complete_partial_requirements( 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_internal/operations/prepare.py", line 469, in _complete_partial_requirements 126.8 for link, (filepath, _) in batch_download: 126.8 ^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_internal/network/download.py", line 184, in __call__ 126.8 for chunk in chunks: 126.8 ^^^^^^ 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_internal/cli/progress_bars.py", line 55, in _rich_progress_bar 126.8 for chunk in iterable: 126.8 ^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_internal/network/utils.py", line 65, in response_chunks 126.8 for chunk in response.raw.stream( 126.8 ^^^^^^^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_vendor/urllib3/response.py", line 622, in stream 126.8 data = self.read(amt=amt, decode_content=decode_content) 126.8 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_vendor/urllib3/response.py", line 560, in read 126.8 with self._error_catcher(): 126.8 ^^^^^^^^^^^^^^^^^^^^^ 126.8 File "/usr/local/lib/python3.12/contextlib.py", line 158, in __exit__ 126.8 self.gen.throw(value) 126.8 File "/usr/local/lib/python3.12/site-packages/pip/_vendor/urllib3/response.py", line 443, in _error_catcher 126.8 raise ReadTimeoutError(self._pool, None, "Read timed out.") 126.8 pip._vendor.urllib3.exceptions.ReadTimeoutError: HTTPSConnectionPool(host='files.pythonhosted.org', port=443): Read timed out. ------ Dockerfile:11 -------------------- 9 | 10 | # Install any dependencies 11 | >>> RUN pip install --default-timeout=100 --retries=10 --no-cache-dir -r requirements.txt 12 | 13 | # Copy the project files into the container -------------------- ERROR: failed to solve: process "/bin/sh -c pip install --default-timeout=100 --retries=10 --no-cache-dir -r requirements.txt" did not complete successfully: exit code: 2 I've tried many solutions for installation line but every time I got the same error. how can i resolve it? 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