Merge branch 'jac/py37'

Author: jac18281828

README.md

@@ -6,10 +6,15 @@
 
 ## Install
 
-With Pip:
+VirutalEnv QuickStart
 
 ```bash
-pip3 install blocknative-sdk
+$ virtualenv bn
+$ . ./bn/bin/activate
+(bn) $ pip3 install --upgrade pip
+(bn) $ pip3 install blocknative-sdk
+(bn) $ curl 'https://raw.githubusercontent.com/blocknative/python-sdk/main/examples/subscribe.py' > subscribe.py
+(bn) $ python3 subscribe.py myapikey.key
 ```
 
 Manual Install
@@ -158,4 +163,4 @@ stream.subscribe_address(pancakeswap_v2_address, txn_handler)
 
 # Start the websocket connection and start receiving events!
 stream.connect()
-```
+```

setup.py

@@ -34,6 +34,6 @@
     url="https://github.com/blocknative/python-sdk",
     keywords="ethereum,api,transactions,blocknative",
     packages=["blocknative"],
-    python_requires=">=3.9",
+    python_requires=">=3.7",
     install_requires=requirements,
 )