Fixed mmh3 installation

sdk_utils.py

@@ -1,8 +1,20 @@
 from random import randint
 from zlib import crc32
 from hashlib import sha256, sha384, sha512, md5
-from mmh3 import hash, hash128
 import logging
+from subprocess import CalledProcessError
+
+from utils import install_package
+
+try:
+    install_package('mmh3')
+except CalledProcessError:
+    install_package('pymmh3')
+
+try:
+    from mmh3 import hash, hash128
+except ImportError:
+    from pymmh3 import hash, hash128
 
 log = logging.getLogger(__name__)
 

setup.py

@@ -36,5 +36,5 @@
     long_description_content_type="text/markdown",
     python_requires=">=3.7",
     packages=["."],
-    install_requires=['paho-mqtt>=1.6', 'requests', 'mmh3', 'simplejson'],
+    install_requires=['paho-mqtt>=1.6', 'requests', 'simplejson'],
     download_url='https://github.com/thingsboard/thingsboard-python-client-sdk/archive/%s.tar.gz' % VERSION)

utils.py

@@ -0,0 +1,26 @@
+from sys import executable
+from subprocess import check_call, CalledProcessError
+
+
+def install_package(package, version="upgrade"):
+    result = False
+    if version.lower() == "upgrade":
+        try:
+            result = check_call([executable, "-m", "pip", "install", package, "--upgrade", "--user"])
+        except CalledProcessError:
+            result = check_call([executable, "-m", "pip", "install", package, "--upgrade"])
+    else:
+        from pkg_resources import get_distribution
+        current_package_version = None
+        try:
+            current_package_version = get_distribution(package)
+        except Exception:
+            pass
+        if current_package_version is None or current_package_version != version:
+            installation_sign = "==" if ">=" not in version else ""
+            try:
+                result = check_call(
+                    [executable, "-m", "pip", "install", package + installation_sign + version, "--user"])
+            except CalledProcessError:
+                result = check_call([executable, "-m", "pip", "install", package + installation_sign + version])
+    return result