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Update readme #779

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10 changes: 6 additions & 4 deletions README.md
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Expand Up @@ -48,8 +48,8 @@ to the path of the `python` (or `python3` etc.) executable and then re-running `
In Julia:

ENV["PYTHON"] = "... path of the python executable ..."
# ENV["PYTHON"] = "C:\\Python37-x64\\python.exe" # example for Windows
# ENV["PYTHON"] = "/usr/bin/python3.7" # example for *nix
# ENV["PYTHON"] = "C:\\Python38-x64\\python.exe" # example for Windows
# ENV["PYTHON"] = "/usr/bin/python3" # example for *nix
Pkg.build("PyCall")

Note also that you will need to re-run `Pkg.build("PyCall")` if your
Expand Down Expand Up @@ -144,10 +144,12 @@ which is automatically converted to a Julia type, you will have override this
via `@pywith EXPR::PyObject ...`.

If you are already familiar with Python, it perhaps is easier to use
`py"..."` and `py"""..."""` which are equivalent to Python's
`py"..."` and `py"""..."""` which are equivalent. But as show in example here
equivalent to Python's
[`eval`](https://docs.python.org/3/library/functions.html#eval) and
[`exec`](https://docs.python.org/3/library/functions.html#exec),
respectively:
respectively, and note in the former case to not skip the newline, i.e.
have """ on separate line:

```julia
py"""
Expand Down