Installation fails on compilation stage of http_client_filter.cc on Centos 7 (with python3)

Start with src/core/ext/filters/http/client/http_client_filter.cc at line 546 and inspect the reported Abseil StrFormat call, then reproduce python3 setup.py install on CentOS 7 using the versions listed. The compilation error should be resolved, and the remaining Python 3 ModuleNotFoundError: No module named 'commands' should be checked separately to confirm whether installation completes.

Versions:

• CentOS Linux release 7.7.1908 (Core)
• cvpi version 2020.2.3-base-4-g56c15e7 go1.13.6

python3 setup.py install fails when compiling http_client_filter.cc.
Here is the part of the output with the compiler error:

src/core/ext/filters/http/client/http_client_filter.cc: In function ‘grpc_core::ManagedMemorySlice user_agent_from_args(const grpc_channel_args*, const char*)’:
src/core/ext/filters/http/client/http_client_filter.cc:546:58: error: no matching function for call to ‘StrFormat(const char [19], const char*, const char [6], const char*&)’
                       GPR_PLATFORM_STRING, transport_name));
                                                          ^
src/core/ext/filters/http/client/http_client_filter.cc:546:58: note: candidate is:
In file included from src/core/ext/filters/http/client/http_client_filter.cc:27:0:
third_party/abseil-cpp/absl/strings/str_format.h:338:34: note: template<class ... Args> std::string absl::lts_2020_09_23::StrFormat(absl::lts_2020_09_23::FormatSpec<Args ...>&, const Args& ...)
 ABSL_MUST_USE_RESULT std::string StrFormat(const FormatSpec<Args...>& format,
                                  ^
third_party/abseil-cpp/absl/strings/str_format.h:338:34: note:   template argument deduction/substitution failed:
src/core/ext/filters/http/client/http_client_filter.cc:546:58: note:   mismatched types ‘absl::lts_2020_09_23::FormatSpec<Args ...>’ and ‘const char [19]’
                       GPR_PLATFORM_STRING, transport_name));

The attached file below includes the whole output of the command:
cloudvision-compile.txt

Note that in the end there is a secondary problem that has to do with python 3 (the ModuleNotFoundError: No module named 'commands' error), but I guess that is only triggered by the gcc error above.