Update setup.py

- fix for PyPi test builds. Need to try catch the brew version command.

setup.py

@@ -17,6 +17,7 @@
 compile_args = ["-std=c++17", "-Werror", "-Wno-unguarded-availability-new"]
 link_args = []
 netsnmp_version = check_output("net-snmp-config --version", shell=True).decode()
+homebrew_version = None
 
 for arg in argv:
     if arg.startswith("--debug"):
@@ -70,69 +71,75 @@
     print(f"libdirs: {libdirs}")
     print(f"incdirs: {incdirs}")
 
-    # Check if brew is installed via: `brew --version` it should return something like: `Homebrew 4.4.5`
-    homebrew_version = check_output("brew --version", shell=True).decode()
-    if search(r"Homebrew (\d+\.\d+\.\d+)", homebrew_version):
-        # Check if net-snmp is installed via Brew
-        try:
-            brew = check_output("brew list net-snmp 2>/dev/null", shell=True).decode()
-            lines = brew.splitlines()
-            include_dir = list(filter(lambda l: "include/net-snmp" in l, lines))[0]
-            incdirs.append(include_dir[: include_dir.index("include/net-snmp") + 7])
-
-            if platform == "darwin":
-                lib_dir = list(filter(lambda l: "lib/libnetsnmp.dylib" in l, lines))[0]
-                libdirs.append(lib_dir[: lib_dir.index("lib/libnetsnmp.dylib") + 3])
-
-            # The homebrew version also depends on the Openssl keg
-            brew = check_output("brew info net-snmp", shell=True).decode()
-            openssl_ver = list(
-                filter(
-                    lambda o: "openssl" in o,
-                    *map(
-                        str.split,
-                        filter(
-                            lambda l: "openssl" in l,
-                            str(brew.replace("'", "")).split("\n"),
+    try:
+        # Check if brew is installed via: `brew --version` it should return something like: `Homebrew 4.4.5`
+        homebrew_version = check_output("brew --version", shell=True).decode()
+        if search(r"Homebrew (\d+\.\d+\.\d+)", homebrew_version):
+            # Check if net-snmp is installed via Brew
+            try:
+                brew = check_output("brew list net-snmp 2>/dev/null", shell=True).decode()
+                lines = brew.splitlines()
+                include_dir = list(filter(lambda l: "include/net-snmp" in l, lines))[0]
+                incdirs.append(include_dir[: include_dir.index("include/net-snmp") + 7])
+
+                if platform == "darwin":
+                    lib_dir = list(filter(lambda l: "lib/libnetsnmp.dylib" in l, lines))[0]
+                    libdirs.append(lib_dir[: lib_dir.index("lib/libnetsnmp.dylib") + 3])
+
+                # The homebrew version also depends on the Openssl keg
+                brew = check_output("brew info net-snmp", shell=True).decode()
+                openssl_ver = list(
+                    filter(
+                        lambda o: "openssl" in o,
+                        *map(
+                            str.split,
+                            filter(
+                                lambda l: "openssl" in l,
+                                str(brew.replace("'", "")).split("\n"),
+                            ),
                         ),
-                    ),
-                )
-            )[0]
-
-            brew = check_output(
-                "brew info {0}".format(openssl_ver), shell=True
-            ).decode()
-            temp = brew.split("\n")
-            # As of 06/04/2024 brew info openssl spits out lines. the fifth one is what we care about
-            # This works for now, but we need a better solution
-            # ==> openssl@3: stable 3.3.0 (bottled)
-            # Cryptography and SSL/TLS Toolkit
-            # https://openssl.org/
-            # Installed
-            # /opt/homebrew/Cellar/openssl@3/3.3.0 (6,977 files, 32.4MB) *
-            # Poured from bottle using the formulae.brew.sh API on 2024-06-04 at 21:17:37
-            # From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/o/[email protected]
-            # License: Apache-2.0
-            # ...
-            # print(temp)
-            temp_path = str(temp[4].split("(")[0]).strip()
-
-            libdirs.append(temp_path + "/lib")
-            incdirs.append(temp_path + "/include")
-
-            print(f"libdirs: {libdirs}")
-            print(f"incdirs: {incdirs}")
-            print(f"openssl_ver: {openssl_ver}")
-
-        except CalledProcessError:
-            print("A brew command failed...")
-            pass
+                    )
+                )[0]
+
+                brew = check_output(
+                    "brew info {0}".format(openssl_ver), shell=True
+                ).decode()
+                temp = brew.split("\n")
+                # As of 06/04/2024 brew info openssl spits out lines. the fifth one is what we care about
+                # This works for now, but we need a better solution
+                # ==> openssl@3: stable 3.3.0 (bottled)
+                # Cryptography and SSL/TLS Toolkit
+                # https://openssl.org/
+                # Installed
+                # /opt/homebrew/Cellar/openssl@3/3.3.0 (6,977 files, 32.4MB) *
+                # Poured from bottle using the formulae.brew.sh API on 2024-06-04 at 21:17:37
+                # From: https://github.com/Homebrew/homebrew-core/blob/HEAD/Formula/o/[email protected]
+                # License: Apache-2.0
+                # ...
+                # print(temp)
+                temp_path = str(temp[4].split("(")[0]).strip()
+
+                libdirs.append(temp_path + "/lib")
+                incdirs.append(temp_path + "/include")
+
+                print(f"libdirs: {libdirs}")
+                print(f"incdirs: {incdirs}")
+                print(f"openssl_ver: {openssl_ver}")
+
+            except CalledProcessError:
+                print("A brew command failed...")
+                pass
+
+    except CalledProcessError:
+        print("Homebrew isn't installed...")
+        pass
 
 print(f"in_tree: {in_tree}")
 print(f"compile_args: {compile_args}")
 print(f"link_args: {link_args}")
 print(f"platform: {platform}")
 print(f"netsnmp_version: {netsnmp_version}")
+print(f"homebrew_version: {homebrew_version}")
 
 
 class RelinkLibraries(BuildCommand):