# hedera-sdk-py
[Hedera](https://hedera.com/) SDK in Python
This is basically a python wrapper of [Hedera SDK in Java](https://github.com/hashgraph/hedera-sdk-java).
## Install
```sh
pip install hedera-sdk-py
```
## How to build
- Make sure to install Hedera Java SDK Git submodule
- Build Hedera Java SDK JAR
- Go to Java SDK directory and apply most recent patch:
```sh
cd ./hedera-sdk-java
git apply ../patches/v2.46.0.patch
```
- Build JAR
```sh
./gradlew assemble
```
- Go back to root and run code generation script:
```sh
cd ..
python ./scripts/generate_code.py
```
## How to Use
```python
from hedera import PrivateKey
prikey = PrivateKey.generate()
print("Private key: {}".format(prikey.toString()))
print("Public key: {}".format(prikey.getPublicKey().toString()))
```
You must make sure JAVA_HOME is set to a JRE/JDK that's >=11. Do a `echo $JAVA_HOME` on Linux/MacOS or `echo %JAVA_HOME%` on Windows to confirm.
MacOS example:
export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk-16.0.2.jdk/Contents/Home
Linux example:
export JAVA_HOME=/usr/lib/jvm/java-16-openjdk-amd64
Windows:
Type to search "advanced system", you should see "View Advanced System settings", click it, then click "Environment Variables..."
On Windows, if you get "no jvm dll found" error, you need to add %JAVA_HOME%/bin/server (i.e. C:\Program Files\Java\jdk-11.0.10\bin\server) to your path.
See [examples](https://github.com/wensheng/hedera-sdk-py/tree/main/examples) for more example usages.
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