Merge branch 'develop'

Author: shtaxxx

README.md

@@ -58,64 +58,53 @@ Installation
 Requirements
 --------------------
 
-- Python: 2.7, 3.5 or later
+- Python3: 3.6 or later
 
-Python3 is recommended.
+- Icarus Verilog: 10.1 or later
 
-- Icarus Verilog: 0.9.7 or later (but 10.0 is not recommended)
-
-Install on your platform. For exmple, on Ubuntu:
-
-    sudo apt-get install iverilog
-
-- Jinja2: 2.8 or later
-
-Install on your python environment by using pip:
-
-    pip install jinja2
-
-- Pyverilog: 1.1.1 or later
-
-Install from pip (or download and install from GitHub):
-
-    pip install pyverilog
-
-- IPgen: 0.3.1 or later
+```
+sudo apt install iverilog
+```
 
-Install from pip (or download and install from GitHub):
+- Jinja2: 2.10 or later
+- pytest: 3.2 or later
+- pytest-pythonpath: 0.7 or later
+- Pyverilog: 1.1.2 or later
+- IPgen: 1.0.0 or later
 
-    pip install ipgen
+```
+pip3 install jinja2 pytest pytest-pythonpath pyverilog ipgen
+```
 
 Options
 --------------------
 
-- pytest: 2.8.2 or later
-- pytest-pythonpath: 0.7 or later
-
-These softwares are required for running the tests in tests and examples:
-
-    pip install pytest pytest-pythonpath
-
 - Graphviz: 2.38.0 or later
 - Pygraphviz: 1.3.1 or later
 
 These softwares are required for graph visualization by veriloggen.dataflow:
 
-    sudo apt-get install graphviz
-    pip install pygraphviz
+```
+sudo apt install graphviz
+pip3 install pygraphviz
+```
 
 - NumPy: 1.14 or later
 
 This is required for the memory image generation function of types.axi.AxiMemoryModel from Python list or numpy.ndarray:
 
-    pip install numpy
+```
+pip3 install numpy
+```
 
 Install
 --------------------
 
 Install Veriloggen:
 
-    python setup.py install
+```
+python3 setup.py install
+```
 
 On Docker
 --------------------
@@ -211,7 +200,7 @@ if __name__ == '__main__':
 Run the script.
 
 ```
-python hello_led.py
+python3 hello_led.py
 ```
 
 You will have a complete Verilog HDL source code named 'tmp.v' as below, which is generated by the source code generator.