diff --git a/bin/parseHPMC.py b/bin/parseHPMC.py
index c0137916f..c9d9b8ffc 100755
--- a/bin/parseHPMC.py
+++ b/bin/parseHPMC.py
@@ -256,7 +256,7 @@ def ReportAsText(benchmarkDict):
     if(args.summary):
         mean = benchmarkDict['Mean']
         print('Mean')
-        for (name, typ, entries. size, val) in mean:
+        for (name, typ, entries, size, val) in mean:
             sys.stdout.write('%s %s %0.2f\n' % (name, entries if not args.size else size, val if not args.invert else 100 - val))
         
     if(not args.summary):
diff --git a/tests/coverage/dcache1.py b/tests/coverage/dcache1.py
index d8740bdda..12196a1b3 100644
--- a/tests/coverage/dcache1.py
+++ b/tests/coverage/dcache1.py
@@ -78,7 +78,7 @@ if __name__ == "__main__":
     for i in range(dcache_num_ways):
         wl(comment=f"start way test #{i+1}")
         wl(f'li t0, {hex(mem_addr)}')
-        wl(f'.align 6')                # start at i$ set boundary. 6 lsb bits are zero.
+        wl('.align 6')                # start at i$ set boundary. 6 lsb bits are zero.
         wl(comment=f"i$ boundary, way test #{i+1}")
         write_repro_instrs()
         mem_addr += dcache_way_size_in_bytes  # so that we excercise a new D$ way.
diff --git a/tests/riscof/sail_cSim/riscof_sail_cSim.py b/tests/riscof/sail_cSim/riscof_sail_cSim.py
index 557d1af04..b2e18d8ac 100644
--- a/tests/riscof/sail_cSim/riscof_sail_cSim.py
+++ b/tests/riscof/sail_cSim/riscof_sail_cSim.py
@@ -1,17 +1,10 @@
 import os
 import re
 import shutil
-import subprocess
-import shlex
 import logging
-import random
-import string
-from string import Template
 
 import riscof.utils as utils
 from riscof.pluginTemplate import pluginTemplate
-import riscof.constants as constants
-from riscv_isac.isac import isac
 
 logger = logging.getLogger()
 
@@ -72,11 +65,11 @@ class sail_cSim(pluginTemplate):
             self.sailargs += "--enable-zcb"
         if "Q" in ispec["ISA"]:
             self.isa += 'q'
-        objdump = "riscv64-unknown-elf-objdump".format(self.xlen)
+        objdump = "riscv64-unknown-elf-objdump"
         if shutil.which(objdump) is None:
             logger.error(objdump+": executable not found. Please check environment setup.")
             raise SystemExit(1)
-        compiler = "riscv64-unknown-elf-gcc".format(self.xlen)
+        compiler = "riscv64-unknown-elf-gcc"
         if shutil.which(compiler) is None:
             logger.error(compiler+": executable not found. Please check environment setup.")
             raise SystemExit(1)
diff --git a/tests/riscof/spike/riscof_spike.py b/tests/riscof/spike/riscof_spike.py
index 2d3eb2a37..581cabe84 100644
--- a/tests/riscof/spike/riscof_spike.py
+++ b/tests/riscof/spike/riscof_spike.py
@@ -1,16 +1,8 @@
 import os
 import re
-import shutil
-import subprocess
-import shlex
 import logging
-import random
-import string
-from string import Template
-import sys
 
 import riscof.utils as utils
-import riscof.constants as constants
 from riscof.pluginTemplate import pluginTemplate
 
 logger = logging.getLogger()