STY: Apply ruff/flake8-simplify rule SIM115

SIM115 Use a context manager for opening files

Author: DimitriPapadopoulos

nipype/interfaces/fsl/model.py

@@ -142,13 +142,12 @@ class Level1Design(BaseInterface):
     output_spec = Level1DesignOutputSpec
 
     def _create_ev_file(self, evfname, evinfo):
-        f = open(evfname, "w")
-        for i in evinfo:
-            if len(i) == 3:
-                f.write(f"{i[0]:f} {i[1]:f} {i[2]:f}\n")
-            else:
-                f.write("%f\n" % i[0])
-        f.close()
+        with open(evfname, "w") as f:
+            for i in evinfo:
+                if len(i) == 3:
+                    f.write(f"{i[0]:f} {i[1]:f} {i[2]:f}\n")
+                else:
+                    f.write("%f\n" % i[0])
 
     def _create_ev_files(
         self,
@@ -403,9 +402,8 @@ def _run_interface(self, runtime):
             fsf_txt += cond_txt
             fsf_txt += fsf_postscript.substitute(overwrite=1)
 
-            f = open(os.path.join(cwd, "run%d.fsf" % i), "w")
-            f.write(fsf_txt)
-            f.close()
+            with open(os.path.join(cwd, "run%d.fsf" % i), "w") as f:
+                f.write(fsf_txt)
 
         return runtime
 
@@ -946,9 +944,8 @@ def _run_interface(self, runtime):
         for i, rundir in enumerate(ensure_list(self.inputs.feat_dirs)):
             fsf_txt += fsf_dirs.substitute(runno=i + 1, rundir=os.path.abspath(rundir))
         fsf_txt += fsf_footer.substitute()
-        f = open(os.path.join(os.getcwd(), "register.fsf"), "w")
-        f.write(fsf_txt)
-        f.close()
+        with open(os.path.join(os.getcwd(), "register.fsf"), "w") as f:
+            f.write(fsf_txt)
 
         return runtime
 
@@ -1414,9 +1411,8 @@ def _run_interface(self, runtime):
 
         # write design files
         for i, name in enumerate(["design.mat", "design.con", "design.grp"]):
-            f = open(os.path.join(cwd, name), "w")
-            f.write(txt[name])
-            f.close()
+            with open(os.path.join(cwd, name), "w") as f:
+                f.write(txt[name])
 
         return runtime
 
@@ -1583,9 +1579,8 @@ def _run_interface(self, runtime):
             if ("fts" in key) and (nfcons == 0):
                 continue
             filename = key.replace("_", ".")
-            f = open(os.path.join(cwd, filename), "w")
-            f.write(val)
-            f.close()
+            with open(os.path.join(cwd, filename), "w") as f:
+                f.write(val)
 
         return runtime
 

nipype/interfaces/nitime/analysis.py

@@ -142,15 +142,13 @@ def _read_csv(self):
 
         """
         # Check that input conforms to expectations:
-        first_row = open(self.inputs.in_file).readline()
+        with open(self.inputs.in_file) as f:
+            first_row = f.readline()
         if not first_row[1].isalpha():
             raise ValueError(
                 "First row of in_file should contain ROI names as strings of characters"
             )
-
-        roi_names = (
-            open(self.inputs.in_file).readline().replace('"', "").strip("\n").split(",")
-        )
+        roi_names = first_row.replace('"', "").strip("\n").split(",")
         # Transpose, so that the time is the last dimension:
         data = np.loadtxt(self.inputs.in_file, skiprows=1, delimiter=",").T
 
@@ -255,16 +253,15 @@ def _make_output_files(self):
             tmp_f = tempfile.mkstemp()[1]
             np.savetxt(tmp_f, this[0], delimiter=",")
 
-            fid = open(
+            with open(
                 fname_presuffix(self.inputs.output_csv_file, suffix="_%s" % this[1]),
                 "w+",
-            )
-            # this writes ROIs as header line
-            fid.write("," + ",".join(self.ROIs) + "\n")
-            # this writes ROI and data to a line
-            for r, line in zip(self.ROIs, open(tmp_f)):
-                fid.write(f"{r},{line}")
-            fid.close()
+            ) as fid:
+                # this writes ROIs as header line
+                fid.write("," + ",".join(self.ROIs) + "\n")
+                # this writes ROI and data to a line
+                for r, line in zip(self.ROIs, open(tmp_f)):
+                    fid.write(f"{r},{line}")
 
     def _make_output_figures(self):
         """

nipype/interfaces/slicer/generate_classes.py

@@ -33,22 +33,22 @@ def force_to_valid_python_variable_name(old_name):
 
 def add_class_to_package(class_codes, class_names, module_name, package_dir):
     module_python_filename = os.path.join(package_dir, "%s.py" % module_name)
-    f_m = open(module_python_filename, "w")
-    f_i = open(os.path.join(package_dir, "__init__.py"), "a+")
-    f_m.write(
-        """# -*- coding: utf-8 -*-
+    with (
+        open(module_python_filename, "w") as f_m,
+        open(os.path.join(package_dir, "__init__.py"), "a+") as f_i,
+    ):
+        f_m.write(
+            """# -*- coding: utf-8 -*-
 \"\"\"Autogenerated file - DO NOT EDIT
 If you spot a bug, please report it on the mailing list and/or change the generator.\"\"\"\n\n"""
-    )
-    imports = """\
+        )
+        imports = """\
 from ..base import (CommandLine, CommandLineInputSpec, SEMLikeCommandLine, TraitedSpec,
                     File, Directory, traits, isdefined, InputMultiPath, OutputMultiPath)
 import os\n\n\n"""
-    f_m.write(imports)
-    f_m.write("\n\n".join(class_codes))
-    f_i.write("from {} import {}\n".format(module_name, ", ".join(class_names)))
-    f_m.close()
-    f_i.close()
+        f_m.write(imports)
+        f_m.write("\n\n".join(class_codes))
+        f_i.write("from {} import {}\n".format(module_name, ", ".join(class_names)))
 
 
 def crawl_code_struct(code_struct, package_dir):
@@ -70,9 +70,8 @@ def crawl_code_struct(code_struct, package_dir):
             if l2:
                 v = l2
                 subpackages.append(k.lower())
-                f_i = open(os.path.join(package_dir, "__init__.py"), "a+")
-                f_i.write("from %s import *\n" % k.lower())
-                f_i.close()
+                with open(os.path.join(package_dir, "__init__.py"), "a+") as f_i:
+                    f_i.write("from %s import *\n" % k.lower())
                 new_pkg_dir = os.path.join(package_dir, k.lower())
                 if os.path.exists(new_pkg_dir):
                     rmtree(new_pkg_dir)
@@ -88,9 +87,9 @@ def crawl_code_struct(code_struct, package_dir):
                     list(v.values()), list(v.keys()), module_name, package_dir
                 )
         if subpackages:
-            f = open(os.path.join(package_dir, "setup.py"), "w")
-            f.write(
-                """# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: nil -*-
+            with open(os.path.join(package_dir, "setup.py"), "w") as f:
+                f.write(
+                    """# emacs: -*- mode: python; py-indent-offset: 4; indent-tabs-mode: nil -*-
 # vi: set ft=python sts=4 ts=4 sw=4 et:
 def configuration(parent_package='',top_path=None):
     from numpy.distutils.misc_util import Configuration
@@ -105,16 +104,15 @@ def configuration(parent_package='',top_path=None):
     from numpy.distutils.core import setup
     setup(**configuration(top_path='').todict())
 """.format(
-                    pkg_name=package_dir.split("/")[-1],
-                    sub_pks="\n    ".join(
-                        [
-                            "config.add_data_dir('%s')" % sub_pkg
-                            for sub_pkg in subpackages
-                        ]
-                    ),
+                        pkg_name=package_dir.split("/")[-1],
+                        sub_pks="\n    ".join(
+                            [
+                                "config.add_data_dir('%s')" % sub_pkg
+                                for sub_pkg in subpackages
+                            ]
+                        ),
+                    )
                 )
-            )
-            f.close()
 
 
 def generate_all_classes(

tools/checkspecs.py

@@ -124,10 +124,8 @@ def _parse_module(self, uri):
         if filename is None:
             # nothing that we could handle here.
             return ([], [])
-        f = open(filename)
-        functions, classes = self._parse_lines(f, uri)
-        f.close()
-        return functions, classes
+        with open(filename) as f:
+            return self._parse_lines(f, uri)
 
     def _parse_lines(self, linesource, module):
         """Parse lines of text for functions and classes"""