pycryptodome/eventlet not work at the same time

app.py

import requests
from flask import Flask
app = Flask(__name__)

@app.route("/")
def hello():
    return "Hello World!"

Dockerfile

FROM python:2-alpine

RUN sed -i "s|dl-cdn.alpinelinux.org|mirrors.tuna.tsinghua.edu.cn|g" /etc/apk/repositories && \
    apk add -U tzdata && \
    cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && echo "Asia/Shanghai" > /etc/timezone && \
    apk add -U -t xxbuild gcc g++ musl-dev
ADD requirements.txt /tmp/requirements.txt
RUN pip install --no-cache-dir -r /tmp/requirements.txt
RUN apk del xxbuild
ADD app.py /code/main.py
WORKDIR /code
CMD gunicorn -w 4 -b :8000 -k eventlet main:app

Pipfile

[[source]]
url = "https://pypi.tuna.tsinghua.edu.cn/simple"
verify_ssl = true
name = "pypi"

[packages]
eventlet = "*"
flask = "*"
gunicorn = "==19.7.1"
pycryptodome = "*"
requests = "*"

[dev-packages]

[requires]
python_version = "2.7"

[[source]]
url = "https://pypi.tuna.tsinghua.edu.cn/simple"
verify_ssl = true

Pipfile.lock

{
    "_meta": {
        "hash": {
            "sha256": "f9340731a1194f5fb40984d9eedb1a6dd97c7a63ee0d1ef564bcc3026efc0ce9"
        },
        "pipfile-spec": 6,
        "requires": {
            "python_version": "2.7"
        },
        "sources": [
            {
                "name": "pypi",
                "url": "https://pypi.tuna.tsinghua.edu.cn/simple",
                "verify_ssl": true
            },
            {
                "url": "https://pypi.tuna.tsinghua.edu.cn/simple",
                "verify_ssl": true
            }
        ]
    },
    "default": {
        "certifi": {
            "hashes": [
                "sha256:13e698f54293db9f89122b0581843a782ad0934a4fe0172d2a980ba77fc61bb7",
                "sha256:9fa520c1bacfb634fa7af20a76bcbd3d5fb390481724c597da32c719a7dca4b0"
            ],
            "version": "==2018.4.16"
        },
        "chardet": {
            "hashes": [
                "sha256:84ab92ed1c4d4f16916e05906b6b75a6c0fb5db821cc65e70cbd64a3e2a5eaae",
                "sha256:fc323ffcaeaed0e0a02bf4d117757b98aed530d9ed4531e3e15460124c106691"
            ],
            "version": "==3.0.4"
        },
        "click": {
            "hashes": [
                "sha256:29f99fc6125fbc931b758dc053b3114e55c77a6e4c6c3a2674a2dc986016381d",
                "sha256:f15516df478d5a56180fbf80e68f206010e6d160fc39fa508b65e035fd75130b"
            ],
            "version": "==6.7"
        },
        "dnspython": {
            "hashes": [
                "sha256:40f563e1f7a7b80dc5a4e76ad75c23da53d62f1e15e6e517293b04e1f84ead7c",
                "sha256:861e6e58faa730f9845aaaa9c6c832851fbf89382ac52915a51f89c71accdd31"
            ],
            "version": "==1.15.0"
        },
        "enum34": {
            "hashes": [
                "sha256:2d81cbbe0e73112bdfe6ef8576f2238f2ba27dd0d55752a776c41d38b7da2850",
                "sha256:644837f692e5f550741432dd3f223bbb9852018674981b1664e5dc339387588a",
                "sha256:6bd0f6ad48ec2aa117d3d141940d484deccda84d4fcd884f5c3d93c23ecd8c79",
                "sha256:8ad8c4783bf61ded74527bffb48ed9b54166685e4230386a9ed9b1279e2df5b1"
            ],
            "markers": "python_version < '3.4'",
            "version": "==1.1.6"
        },
        "eventlet": {
            "hashes": [
                "sha256:c584163e006e613707e224552fafc63e4e0aa31d7de0ab18b481ac0b385254c8",
                "sha256:d9d31a3c8dbcedbcce5859a919956d934685b17323fc80e1077cb344a2ffa68d"
            ],
            "index": "pypi",
            "version": "==0.24.1"
        },
        "flask": {
            "hashes": [
                "sha256:2271c0070dbcb5275fad4a82e29f23ab92682dc45f9dfbc22c02ba9b9322ce48",
                "sha256:a080b744b7e345ccfcbc77954861cb05b3c63786e93f2b3875e0913d44b43f05"
            ],
            "index": "pypi",
            "version": "==1.0.2"
        },
        "greenlet": {
            "hashes": [
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                "sha256:13510d32f8db72a0b3e1720dbf8cba5c4eecdf07abc4cb631982f51256c453d1",
                "sha256:31dc4d77ef04ab0460d024786f51466dbbc274fda7c8aad0885a6df5ff8d642e",
                "sha256:35021d9fecea53b21e4defec0ff3ad69a8e2b75aca1ceddd444a5ba71216547e",
                "sha256:426a8ef9e3b97c27e841648241c2862442c13c91ec4a48c4a72b262ccf30add9",
                "sha256:58217698193fb94f3e6ff57eed0ae20381a8d06c2bc10151f76c06bb449a3a19",
                "sha256:5f45adbbb69281845981bb4e0a4efb8a405f10f3cd6c349cb4a5db3357c6bf93",
                "sha256:5fdb524767288f7ad161d2182f7ed6cafc0a283363728dcd04b9485f6411547c",
                "sha256:71fbee1f7ef3fb42efa3761a8faefc796e7e425f528de536cfb4c9de03bde885",
                "sha256:80bd314157851d06f7db7ca527082dbb0ee97afefb529cdcd59f7a5950927ba0",
                "sha256:b843c9ef6aed54a2649887f55959da0031595ccfaf7e7a0ba7aa681ffeaa0aa1",
                "sha256:c6a05ef8125503d2d282ccf1448e3599b8a6bd805c3cdee79760fa3da0ea090e",
                "sha256:deeda2769a52db840efe5bf7bdf7cefa0ae17b43a844a3259d39fb9465c8b008",
                "sha256:e66f8b09eec1afdcab947d3a1d65b87b25fde39e9172ae1bec562488335633b4",
                "sha256:e8db93045414980dbada8908d49dbbc0aa134277da3ff613b3e548cb275bdd37",
                "sha256:f1cc268a15ade58d9a0c04569fe6613e19b8b0345b64453064e2c3c6d79051af",
                "sha256:fe3001b6a4f3f3582a865b9e5081cc548b973ec20320f297f5e2d46860e9c703",
                "sha256:fe85bf7adb26eb47ad53a1bae5d35a28df16b2b93b89042a3a28746617a4738d"
            ],
            "version": "==0.4.14"
        },
        "gunicorn": {
            "hashes": [
                "sha256:75af03c99389535f218cc596c7de74df4763803f7b63eb09d77e92b3956b36c6",
                "sha256:eee1169f0ca667be05db3351a0960765620dad53f53434262ff8901b68a1b622"
            ],
            "index": "pypi",
            "version": "==19.7.1"
        },
        "idna": {
            "hashes": [
                "sha256:156a6814fb5ac1fc6850fb002e0852d56c0c8d2531923a51032d1b70760e186e",
                "sha256:684a38a6f903c1d71d6d5fac066b58d7768af4de2b832e426ec79c30daa94a16"
            ],
            "version": "==2.7"
        },
        "itsdangerous": {
            "hashes": [
                "sha256:cbb3fcf8d3e33df861709ecaf89d9e6629cff0a217bc2848f1b41cd30d360519"
            ],
            "version": "==0.24"
        },
        "jinja2": {
            "hashes": [
                "sha256:74c935a1b8bb9a3947c50a54766a969d4846290e1e788ea44c1392163723c3bd",
                "sha256:f84be1bb0040caca4cea721fcbbbbd61f9be9464ca236387158b0feea01914a4"
            ],
            "version": "==2.10"
        },
        "markupsafe": {
            "hashes": [
                "sha256:a6be69091dac236ea9c6bc7d012beab42010fa914c459791d627dad4910eb665"
            ],
            "version": "==1.0"
        },
        "monotonic": {
            "hashes": [
                "sha256:23953d55076df038541e648a53676fb24980f7a1be290cdda21300b3bc21dfb0",
                "sha256:552a91f381532e33cbd07c6a2655a21908088962bb8fa7239ecbcc6ad1140cc7"
            ],
            "version": "==1.5"
        },
        "pycryptodome": {
            "hashes": [
                "sha256:010d6ec31de6416db7136f1b56ca85363e2980986a5d7dd0c18797e4a3a54184",
                "sha256:264b3754f61f338cc4cfd6c9e00f5f8778fce73e20a37f4551ed0fa7fa1a5f25",
                "sha256:2ed336bdd7bc1f227eb06964531933bfed6470012608bfc5eb6aaf6ddffe6137",
                "sha256:3c3ddad19994247a1c00e8e30c3da00820627ecedc4aee5865967f84bad6f958",
                "sha256:3f9caa51b039cd010eff75bf5dbc8dd995c8b45b6e4e8e54f5161960dbd8e9e3",
                "sha256:416ea498d5fea189ceaef3cf9526939b5fdc7d06c8a42f47d5bb7938b74bdb07",
                "sha256:53ffdd13fce5155bbd52f82738794ed8ae2ea9619c31931ed6061618e218c738",
                "sha256:6211dd4025496441d5b61cdf4d3aa70b7db0413c87ffd79d9ad1e0ddf0634bba",
                "sha256:6245567a6ff07eb518d3ec7bbe4a33cf2b4de9a50083a906b199488359d754c4",
                "sha256:62af7c01cbf67de60937c98073767cea65c470103a4775b46d5ab09924d49bab",
                "sha256:659432b58f5eaba280ecd139fe8394d369585224a1edfa7920a0f7c77bf9f8dc",
                "sha256:6feea8a031701919983929e4a9c2ee36469d050cc7fd77bf86f364b0f9a961e7",
                "sha256:7180dc3c3e002af1fb44bc7265a2aba4a318b0b00850d66cb935f90032529753",
                "sha256:743c38d6331dfb9e672397306dfaad4b0524afa8ff1d07271ff50d6da70566e0",
                "sha256:81a98457740c7eb6c9d90d1f8e84264b3446bbda9019f561e86f0972be30feb8",
                "sha256:87f990b915e794e4a7526703696f03adfe99cbf72523c0eb40a06453e6f21ddb",
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                "sha256:a8acea6e8301176c5f58aee3c915958ea15523b67e3a9159929e3699608ec11a",
                "sha256:aabdcc2a42c05614bd9b46d475237226e5127e352cae41a339f864cc8ec6f8c9",
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                "sha256:b3ee89825098c6f36bac7d4a41fb8a699a3922ac8c309b94cf433f77b6bc19fa",
                "sha256:b64da7a09ee9edb912b61e88282dbe2a8f10bbc2a58f33eef755b4b3274521b0",
                "sha256:b69303ad2c3beca33d872dc8c1a73e83cc8733233d3454a1266f09d6e0cea9ff",
                "sha256:c41c2167292f4bea115c9a566728ecdc05b8a6b0788c734a32c1fc9425b2bc69",
                "sha256:d1569e5e0d79730b60a0c08120b3a84ce5ecd8461c1c8b76ebde49b423296066",
                "sha256:ea2b9f7edd1ac89d8445a1800f52b2e506e3b9d643b95a44f53fb8f59cf167fd",
                "sha256:eda82b564990e1d58e6c0d6646581aaf5b50567b05130efe71f3c6be0e11bf38",
                "sha256:edfee1d19a7865add83463e92c6a7810e824ae9a10c9abb95b1763263f7e247c"
            ],
            "index": "pypi",
            "version": "==3.6.4"
        },
        "requests": {
            "hashes": [
                "sha256:63b52e3c866428a224f97cab011de738c36aec0185aa91cfacd418b5d58911d1",
                "sha256:ec22d826a36ed72a7358ff3fe56cbd4ba69dd7a6718ffd450ff0e9df7a47ce6a"
            ],
            "index": "pypi",
            "version": "==2.19.1"
        },
        "six": {
            "hashes": [
                "sha256:70e8a77beed4562e7f14fe23a786b54f6296e34344c23bc42f07b15018ff98e9",
                "sha256:832dc0e10feb1aa2c68dcc57dbb658f1c7e65b9b61af69048abc87a2db00a0eb"
            ],
            "version": "==1.11.0"
        },
        "urllib3": {
            "hashes": [
                "sha256:a68ac5e15e76e7e5dd2b8f94007233e01effe3e50e8daddf69acfd81cb686baf",
                "sha256:b5725a0bd4ba422ab0e66e89e030c806576753ea3ee08554382c14e685d117b5"
            ],
            "markers": "python_version != '3.2.*' and python_version != '3.3.*' and python_version != '3.0.*' and python_version != '3.1.*' and python_version < '4' and python_version >= '2.6'",
            "version": "==1.23"
        },
        "werkzeug": {
            "hashes": [
                "sha256:c3fd7a7d41976d9f44db327260e263132466836cef6f91512889ed60ad26557c",
                "sha256:d5da73735293558eb1651ee2fddc4d0dedcfa06538b8813a2e20011583c9e49b"
            ],
            "version": "==0.14.1"
        }
    },
    "develop": {}
}

requirements.txt

-i https://pypi.tuna.tsinghua.edu.cn/simple
--extra-index-url https://pypi.tuna.tsinghua.edu.cn/simple
certifi==2018.4.16
chardet==3.0.4
click==6.7
dnspython==1.15.0
enum34==1.1.6; python_version < '3.4'
eventlet==0.24.1
flask==1.0.2
greenlet==0.4.14
gunicorn==19.7.1
idna==2.7
itsdangerous==0.24
jinja2==2.10
markupsafe==1.0
monotonic==1.5
pycryptodome==3.6.4
requests==2.19.1
six==1.11.0
urllib3==1.23; python_version >= '2.6'
werkzeug==0.14.1