scripts: Fixed openio issue where some scripts didn't import os

This only failed if "-" was used as an argument (for stdin/stdout), so
the issue was pretty hard to spot.

openio is a heavily copy-pasted function, so it makes sense to just add
the import os to openio directly. Otherwise this mistake will likely
happen again in the future.

scripts/bench.py

@@ -46,6 +46,7 @@ PERF_SCRIPT = ['./scripts/perf.py']
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/changeprefix.py

@@ -32,6 +32,7 @@ GIT_PATH = ['git']
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/code.py

@@ -157,6 +157,7 @@ class CodeResult(co.namedtuple('CodeResult', [
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/codemap.py

@@ -43,6 +43,7 @@ CTX_PATH = ['./scripts/ctx.py']
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/codemapd3.py

@@ -61,6 +61,7 @@ CTX_PATH = ['./scripts/ctx.py']
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/cov.py

@@ -264,6 +264,7 @@ class CovResult(co.namedtuple('CovResult', [
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/crc32c.py

@@ -12,6 +12,7 @@ import sys
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/csv.py

@@ -1330,6 +1330,7 @@ def punescape_help():
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/ctx.py

@@ -162,6 +162,7 @@ class CtxResult(co.namedtuple('CtxResult', [
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/data.py

@@ -157,6 +157,7 @@ class DataResult(co.namedtuple('DataResult', [
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/parity.py

@@ -14,6 +14,7 @@ import operator as op
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/perf.py

@@ -182,6 +182,7 @@ class PerfResult(co.namedtuple('PerfResult', [
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/perfbd.py

@@ -166,6 +166,7 @@ class PerfBdResult(co.namedtuple('PerfBdResult', [
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/plot.py

@@ -134,6 +134,7 @@ def si2(x, w=5):
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/plotmpl.py

@@ -160,6 +160,7 @@ class AutoMultipleLocator(mpl.ticker.MultipleLocator):
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/prettyasserts.py

@@ -80,6 +80,7 @@ L.lex('STUFF',          '[^;{}?:,()"\'=!<>\-&|/#]+',
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/stack.py

@@ -162,6 +162,7 @@ class StackResult(co.namedtuple('StackResult', [
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/structs.py

@@ -160,6 +160,7 @@ class StructResult(co.namedtuple('StructResult', [
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/tailpipe.py

@@ -25,6 +25,7 @@ import time
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/teepipe.py

@@ -21,6 +21,7 @@ import sys
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/test.py

@@ -47,6 +47,7 @@ PERF_SCRIPT = ['./scripts/perf.py']
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/tracebd.py

@@ -46,6 +46,7 @@ CHARS_BRAILLE = (
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/treemap.py

@@ -36,6 +36,7 @@ CHARS_BRAILLE = (
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/treemapd3.py

@@ -53,6 +53,7 @@ FONT_SIZE = 10
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)

scripts/watch.py

@@ -36,6 +36,7 @@ except ModuleNotFoundError:
 
 def openio(path, mode='r', buffering=-1):
     # allow '-' for stdin/stdout
+    import os
     if path == '-':
         if 'r' in mode:
             return os.fdopen(os.dup(sys.stdin.fileno()), mode, buffering)