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c-extension-tutorial's Issues

Suggestion: include a bit on memory management

Some questions that have been bothering me about the functions described in https://docs.python.org/3/c-api/memory.html:

  • What are the differences between PyMem_RawMalloc, PyMem_Malloc, PyObject_Malloc, etc.?
  • Do these functions automatically raise a MemoryError if they return None?

While the answers are out there (I ended up reading the source code and some Stack Overflow posts), they are non-trivial to find.

source setup-env fails with Xcode errors (Macbook running Sierra)

Here is the stderr of the setup-env command, anything obvious jump out to anyone? (trying to hack around it now)

 Updating Homebrew...
  ^[[33mWarning:^[[0m openssl is a keg-only and another version is linked to opt.
  ^[[33mWarning:^[[0m xz-5.2.3 already installed
  Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SD
    Ks/MacOSX10.12.sdk/usr/include/c++/4.2.1
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libpython3.6dm.a(dynamic_annotations.o) has no symbols
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libpython3.6dm.a(pymath.o) has no symbols
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libpython3.6dm.a(dynamic_annotations.o) has no symbols
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libpython3.6dm.a(pymath.o) has no symbols
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libpython3.6dm.a(dynamic_annotations.o) has no symbols
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libpython3.6dm.a(pymath.o) has no symbols
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libpython3.6dm.a(dynamic_annotations.o) has no symbols
  /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ranlib: file: libpython3.6dm.a(pymath.o) has no symbols
 Error: Command '['/Users/SeanH/git/c-extension-tutorial/venv/bin/python.exe', '-Im', 'ensurepip', '--upgrade', '--default-pip']' returned non-zero exit status 1.

Cannot get Venv

Hello,

I tried to set this up, but I keep getting an error where the setup-env script never creates the venv:

...
renaming build/scripts-3.6/pydoc3 to build/scripts-3.6/pydoc3.6
renaming build/scripts-3.6/idle3 to build/scripts-3.6/idle3.6
renaming build/scripts-3.6/2to3 to build/scripts-3.6/2to3-3.6
renaming build/scripts-3.6/pyvenv to build/scripts-3.6/pyvenv-3.6
~/Desktop/c_extension_tutorial/c-extension-tutorial
bash: ./submodules/cpython/python: is a directory
cp: venv/bin/python-gdb.py: No such file or directory
bash: venv/bin/activate: No such file or directory
Requirement already satisfied: ipython in /usr/local/lib/python3.5/site-packages
Requirement already satisfied: traitlets>=4.2 in /usr/local/lib/python3.5/site-packages (from ipython)
...

The issue is that there is a ./submodules/cpython/Python directory (I am on MacOS X) and it seems like the python file was never compiled, although there is a python.exe.

Is there any idea as to how I might go about fixing this? I didn't want to rename the Python directory lest I break something else...

Failed to set up environment

I am trying to install the tutorial on a brand new Ubuntu 16.04 LTS virtual machine. I am able to clone the repository and compile Python 3.6. However, the install script fails near the end when it's trying to execute:

venv/bin/python -Im ensurepip --upgrade --default-pip

When I run the command manually, I see the problem is that the "zlib" module is missing (can't decompress data; zlib not available).

What am I doing wrong?

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